Download Windows 7 SP1 Commercial OEM and Retail .iso

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Despite these guides being Dell based. The instructions on this page should work for all Windows 7 OEM licenses and retail licenses.

The Windows 7 SP1 .isos from Microsoft’s Techbench are unbranded and can hence be used with any Windows 7 OEM or Retail License. The ABR cert files are available for most OEMs allowing you to utilised OEM System Locked Preinstallation (offline BIOS based Product Activation).

For Dell Systems updated Dell Windows 7 Reinstallation with “SP2” .isos are recommended. These updated images are recommended for use in a Dell system as they have increased driver support and automatically apply Dell OEM System Locked Preinstallation.

The Free Upgrade to Windows 10 RS1

Microsoft are keen for you to Upgrade to Windows 10. The Upgrade is Free and you may directly Clean Install Windows 10 RS1 (version 1607) or later:


See Download Windows 10 RS1 OEM and Retail .iso for more details on Clean Installation (recommended) or alternatively Upgrading to Windows 10 RS1 for more details on Upgrading (less recommended).



There are 4 types of Windows 7 License that this guide covers:

  • Windows 7 Major Partner OEM
  • Windows 7 Commercial OEM
  • Windows 7 Retail Upgrade Only
  • Windows 7 Retail Full

OEM stands for Original Equipment Manufacturer. It is a cheaper Windows License that is sold to system builders to preinstall on a Device and then to sell on to their End Customer. Support for the Windows OS comes primarily from the OEM system builder and the caveat of this is the system builder can only support their own hardware as a consequence the Windows OEM License is forever tied to the systems motherboard.

Examples of Microsoft’s Major Partner OEMs are Dell, Alienware, Lenovo (including IBM), HP (including Compaq), ASUS, Acer (including Gateway, Packard Bell and eMachines), Samsung and Sony essentially vendors of all the Windows Devices you see on the high street market. Commercial OEMs may be local computer shops or companies who make low volume specialised hardware e.g. scientific instruments or medical devices.

The Microsoft’s Major OEM license is the most abundant type of Windows license as it comes preinstalled with most consumer and business computers. Unfortunately it is usually the most poorly covered license in most other Windows Installation Guides due to complications brought about by Microsoft regarding installation media. Microsoft expected Major OEMs to support it but forced a media reduction policy preventing OEMs from shipping physical installation media and also didn’t allow OEMs to provide download links for many years… My set of guides focus primarily on this license type, detailing some necessary unofficial workarounds and as a consequence are now at 9 million views… My guides also cover the Retail Licenses in some detail, specifically mentioning notes about the Retail Upgrade Only License and related problems associated with it due to the “Upgrade Only” restrictions made by Microsoft and lack of Downloadable Installation Media of Earlier Windows Versions to Upgrade from. “Upgrade Only” is a major flaw which these guides have flagged up for many years and a thing Microsoft abolished with Windows 10 TH2 (version 1511) and later.

You will also see the option to Download N Editions of Windows 7.

You may be thinking what is a European Commission N Edition?

Image result for european union flag without the uk

Essentially some Eurocrat decided it’s anti-competitive (ironic) for Microsoft to prebundle media features within Microsoft Windows so with some red tape forced Microsoft to duplicate almost all the Editions of Windows again… Like many of the European Commission policies (such as the infamously annoying Browser Choice Update) these Editions are extremely unpopular even in European Countries. This annoyance essentially created more unnecessary Windows 7 Editions resulting in end-user confusion. As these Editions are extremely rare. OEM SLP mentioned in more detail later has not been tested with N Editions.

Thankfully we in the UK Brexited and look forward to re-establishing Commonwealth Links especially with Canada, Australia. New Zealand and United Kingdom (CANZUK).


The instructions in this guide do not cover North Korean K or KN Editions:

No comment on North Korean bureaucracy except for the fact that it led to even more Editions of Windows 7. The instructions in this guide may or may not work for the North Korean Editions. This set of installation guides isn’t very popular in North Korea.

Dr Philip Yip, Dell Community Rockstar.

Windows 7 SP1 – Retail and Commercial OEM Download Links

Windows 7 Retail and Commercial OEM can be Downloaded from Microsoft’s Techbench. Unfortunately they broke the Techbench website last minute and it now asks for a Product Key… This would be fine if it worked correctly however…

For most product keys you will get the following error message:

“Error The product key you’ve entered appears to be for software which was pre-installed by the device manufacturer. Please contact the device manufacturer for software recovery options.”


With some keys you may get this error message:

“The product key you’ve entered appears to be for software which was licensed through an Enterprise Agreement. Please contact the Volume Licensing Service License Centre for Software Recovery Options or visit the Licensing Home Page for more information on Enterprise Agreements.”


If you are lucky! you may even get this error message:

“We encountered a problem processing your request. Please try again later.”


And if you are very lucky! Your key may actually work and give you the wrong language to download! Here is an English key bought in the UK:


To overcome this nuisance one can use Jan Krohn’s Microsoft Windows and Office .iso Downloader Tool. This is a utility that essentially fixes the flawed user interface allowing the generation of proper download links without the need to input your product key. These Download Links are to untouched .iso files stored on Microsoft’s servers.

Windows iso Downloader Tool

One still has to have an eligible key for Product Activation or an eligible system with a BIOS certified by their OEM to run Windows 7.

Note the commercial OEM .isos directly downloaded from Microsoft do not apply automatic offline BIOS based OEM System Locked Preinstallation. This can be applied for Dell, Alienware, Lenovo (including IBM), HP (including Compaq), ASUS, Acer (including Gateway, eMachines and Packard Bell), Samsung, Sony, Toshiba, MSI and Fujitsu systems using the ABR program see Applying OEM System Locked Preinstallation.

One should Create a Bootable USB using Rufus with these .isos.

Windows Update for Windows 7 has been broken for several months and you will waste many hours searching for Updates. Use the WSUS Offline Update to fully patch Windows 7 after installation. Windows Update will work after WSUS Offline Update has fully updated the Windows 7 Installation.


English File Sizes and Checksums

The Microsoft Windows and Microsoft .iso Downloader Tool generates direct download links from Microsoft’s servers. It doesn’t check whether the .iso you downloaded is complete or not.

For the English .isos the file size is 2,504,372 KB for Windows 7 32 Bit and 3,243,070 KB for Windows 7 64 Bit. The file sizes are the same for all Editions of Commercial and Retail .isos (excluding European Commission N Editions) as the installation media is identical. The only file that differs from Edition to Edition is a small EI.cfg file found within the sources folder of the .iso (see Deleting the EI.cfg file at the End of this guide for more details).

The checksums can be checked with Rufus (which we will use later to make the Bootable USB):

Rufus doesn’t need to be installed. Launch Rufus:


Select yes at the user account control prompt.


Select the load .iso icon:


Select your .iso and select open:


Select #:


This will give you the .iso checksums:


For English .isos they should match the following. If they do not you have an incomplete download.

Commerical OEM .isos

Win7_Starter_SP1_English_COEM_x32 (2,504,372 KB)

  • MD5: c23c9cecee7e3093acfe00faab7091b5
  • SHA1: e1653b111c4c6fd75b1be8f9b4c9bcbb0b39b209
  • SHA256: a1cd61a1731b1deeda089c823c815454cb7a7de04b2b7f0cd4c171e31afb61b2

Win7_HomeBasic_SP1_English_COEM_x32.iso (2,504,372 KB)

  • MD5: f760d5a0ed615c6a93829ebc84db2a0d
  • SHA1: c1e663fa5138ccb08e07ccc5bab1d74d168e3452
  • SHA256: e63637b39caf187ee3f7dd68c51cc0509157d58c498002933735992760fa4dfb

Win7_HomeBasic_SP1_English_COEM_x64.iso (3,243,070 KB)

  • MD5: b650412b04de41f36a53ef7e0658a8b3
  • SHA1: 72666801e3ce687625173a11e1a3e7ffed04f148
  • SHA256: e2764cf9c06fc51e4f556bb6675a840d0e8e6bd507c938caac4ebccdf0ad771b

Win7_HomePrem_SP1_English_COEM_x32 (2,504,372 KB)

  • MD5: ec49e3869291f2dc0aae53c21f3ac51a
  • SHA1: f0991cbdbf87d54c3bf97e189f7a4a5aba692a59
  • SHA256: 653c2a494f19c06ce33c9e0bec29ae2d07a0a736aa1712e87391126d64444047

Win7_HomePrem_SP1_English_COEM_x64 (3,243,070 KB)

  • MD5: 1bfe92baeadf28092557ed80376938f9
  • SHA1: 1e0cdfafb6a390e0e7e9f54ce99395ee42a59de0
  • SHA256: 1dd79367c866573efd2de02ce331bac93a67d3395474d6911d2b28444d5ee3c0

Win7_Pro_SP1_English_COEM_x32 (2,504,372 KB)

  • MD5: 296f892e1f9b66ef5836a54557309e94
  • SHA1: a908cf84fd448c235945fb5b6e2ff232eb362575
  • SHA256: f814b85295351e4ab902dc1777c5539f6d855c8997bea833277290bca0a5385b

Win7_Pro_SP1_English_COEM_x64 (3,243,070 KB)

  • MD5: 39134fad6ccc6292a5e81a5dcedc4d13
  • SHA1: 5998495086fde086b2c8a1e490d8f1cd1dcc99cc
  • SHA256: 8341417c575adb92cd11a1f77666b6d6cbbcfc56855927407235983e838cfe83

Win7_Ult_SP1_English_COEM_x32 (2,504,372 KB)

  • MD5: 02f83c24906fe8b8308cf21af7f39f0e
  • SHA1: c511bf0de7632c47e8a2071acfe04637b498212d
  • SHA256: ad3a17fbbd513083adf49606bd9779c561071837b04f5bf6b3d0ea2ea0c39407

Win7_Ult_SP1_English_COEM_x64 (3,243,070 KB)

  • MD5: b00ccf47143f62486cecf467850e6c33
  • SHA1: 37a6ed40d14428617c8fa196ec5448478db63bb9
  • SHA256: 9a7ac3bad825996a3ef3b9efc0a8b9750961b730c5aab3df64a9fd10a6ba02f4

Retail .isos

Win7_HomeBasic_SP1_English_x32 (2,504,372 KB)

  • MD5: 706c0eb93af2fb3df98e22422c72182c
  • SHA1: 080ec1de94b88b0f7e8d000690a4aaaa031e2719
  • SHA256: d8fa5ea8cf67315fa6ce693ef0c70503df7e14258301585ebc28eb1c6c8d6216

Win7_HomePrem_SP1_English_x32 (2,504,372 KB)

  • MD5: 0afa9359c62dc7b320205d3863c60385
  • SHA1: 6071b4553fcf0ea53d589a846b5ae76743dd68fc
  • SHA256: fe504356ac617baa572826a6fbf9ecba07cc498b3b79fcc6294a487f81fdd8e7

This .iso was called X17-58996.iso when it was hosted on Digital River before February 2015.

Win7_HomePrem_SP1_English_x64 (3,243,070 KB)

  • MD5: da319b5826162829c436306bebea7f0f
  • SHA1: 6c9058389c1e2e5122b7c933275f963edf1c07b9
  • SHA256: c10a9da74a34e3ab57446cddd7a0f825d526da78d9796d442db5022c33e3cb7f

This .iso was called X17-58997.iso when it was hosted on Digital River before February 2015.

Win7_Pro_SP1_English_x32 (2,504,372 KB)

  • MD5: 0bff99c8310ba12a9136e3d23606f3d4
  • SHA1: d89937df3a9bc2ec1a1486195fd308cd3dade928
  • SHA256: fd4cdf56e0087ac4a76d6858046f3ee50977d47917ca96366322e271ddd4838e

This .iso was called X17-59183.iso when it was hosted on Digital River before February 2015.

Win7_Pro_SP1_English_x64 (3,243,070 KB)

  • MD5: ed15956fe33c13642a6d2cb2c7aa9749
  • SHA1: 0bcfc54019ea175b1ee51f6d2b207a3d14dd2b58
  • SHA256: 3dae1a531b90fa72e59b4a86b20216188d398c8c070da4a5c5a44fe08b1b6e55

This .iso was called X17-59186.iso when it was hosted on Digital River before February 2015.

Win7_Ult_SP1_English_x32 (2,504,372 KB)

  • MD5: 2572274e6b0acf4ed1b502b175f2c2db
  • SHA1: 65fce0f445d9bf7e78e43f17e441e08c63722657
  • SHA256: e2c009a66d63a742941f5087acae1aa438dcbe87010bddd53884b1af6b22c940

This .iso was called X17-59463.iso when it was hosted on Digital River before February 2015.

Win7_Ult_SP1_English_x64 (3,243,070 KB)

  • MD5: c9f7ecb768acb82daacf5030e14b271e
  • SHA1: 36ae90defbad9d9539e649b193ae573b77a71c83
  • SHA256: 36f4fa2416d0982697ab106e3a72d2e120dbcdb6cc54fd3906d06120d0653808

This .iso was called X17-59465.iso when it was hosted on Digital River before February 2015.

Note Windows 7 Starter is OEM only and hence not found as a Retail .iso. It is unknown why there is a 64 Bit and 32 Bit Commerical OEM .iso and only a 32 Bit Retail .iso for Windows 7 Home Basic. This Edition is pretty much OEM only however.

Commercial OEM N .isos

Win7_HomePrem_N_SP1_English_COEM_x32 (2,217,196 KB)

  • MD5: 9feb6e72e3d91cb581df4709a7fe1406
  • SHA1: b56d31708187d46bd70b14f5a0cbc601c7824967
  • SHA256: 39a8d7b6ede58c06182fa1692adbac627f5e812362093a261c17842584ff1bb5

Win7_HomePrem_N_SP1_English_COEM_x64 (2,904,836 KB)

  • MD5: 61fb17338ca579c9b88fb612f053042a
  • SHA1: 8ddd6461df488e1cf09d815dc931de7e9c0a391b
  • SHA256: d9845049002343327e2965ec7d48fc8c314b4a42261fe53b2707a1035edac9b9

Win7_Pro_N_SP1_English_COEM_x32 (2,217,196 KB)

  • MD5: 8f9dc4097d5530522f9daf848e4bcd29
  • SHA1: 05856ff8cb806c2226680015dc84ae32757afbee
  • SHA256: 8d390e8890ba812c4d07f6f76110325093f41b9132db3bec3a949513577be5e7

Win7_Pro_N_SP1_English_COEM_x64 (2,904,836 KB)

  • MD5: 0adeff47e09dd18b2fed976f5998a4ff
  • SHA1: 650d01efbb8bc06d96ad0ca39342dd56da6dc010
  • SHA256: 4c63c6acd2e58b965f93ebec419c3c375d46faef82314b12f40ba4df77ab69e6

Win7_Ult_N_SP1_English_COEM_x32 (2,217,196 KB)

  • MD5: 1a8802855b49fa691e26dbd95b6e7bcc
  • SHA1: cd836ac87671164dc6d574414ee860ac8680ddd8
  • SHA256: befb0c02070bf477b25652a11912cb28ba77f0a2822fa3323c9fc83fc8d6ec60

Win7_Ult_N_SP1_English_COEM_x64 (2,904,836 KB)

  • MD5: 016239e9d44a3494ad8a00ab8803959c
  • SHA1: ac688c494acdb6efe44f5dcad15810a094720ef3
  • SHA256: d6d4fca366b04cbeb83326e809265560416f27bd74509cfae5225a28a165bf7a

Retail N .isos

Win7_HomePrem_N_SP1_English_x32 (2,217,196 KB)

  • MD5: b5edcee4c7c851c13c064ecd7c7176e6
  • SHA1: f17fb1397797c5e83a3f18e76f19dcee2b0736d4
  • SHA256: daa5ff6bbaf4bade6c4bcd559ae7151e1d26281b38421ef1864a6e831436b7bc

Win7_HomePrem_N_SP1_English_x64 (2,904,836 KB)

  • MD5: 9d8ca8fec19272ce96f3728ccbd1db6b
  • SHA1: 6496c1221b4d2090ea599acafbee33aa6855aadc
  • SHA256: e9bdc2f18144bd44fab5fd4f8e963ad16b1f0e68708a0f091820c605dcac8a22

Win7_Pro_N_SP1_English_x32 (2,217,196 KB)

  • MD5: a553f87c6d4102ea317c8ede93891662
  • SHA1: fda90230e29052b7b20ca408e961c5d2743041f1
  • SHA256: ed70d0260e4c16da603e5364b4bdab4f681532a8094b15ac4d056610658e9b2e

Win7_Pro_N_SP1_English_x64 (2,904,836 KB)

  • MD5: 57de0ef0d8aec8f57648c41ca6dc855d
  • SHA1: 59f942bc69ca6d8ab25a3b63a018d86d8acee78b
  • SHA256: 7c9573f127e01c877d6d3f22bd3ba4bbfe8dbc421755697b679557c0850bd09b

Win7_Ult_N_SP1_English_x32 (2,217,196 KB)

  • MD5: 8d9c55270d91a25663517dbef9968c80
  • SHA1: bbf301280faa00b02f5475cdaa06558f569569e8
  • SHA256: 12da8abb86ca0651ecc919bf342d7990b1175ef2eb3a22e3bfbcfa38f770c7a5

Win7_Ult_N_SP1_English_x64 (2,904,836 KB)

  • MD5: 125a15247bceb880d6ae6a30e481eeb2
  • SHA1: e01a55499fe9eba718b59492e55b567f3d6f4e1b
  • SHA256: 24e6a5719cf8ed3b0afda7c21f989cbf93ed627c1ef99ba3359010fc1132901f

Creating a Bootable USB

You will require a 16 GB USB Flash Drive for the Windows 7 64 Bit .isos and a 8-16 GB USB for the Windows 7 32 Bit .isos.

A DVD is not suitable as it is too small.

Use Rufus to create a Bootable USB:

There are two types of Bootable USB you can make with Rufus.

  • A Bootable USB for a UEFI BIOS with the GPT partition scheme (Requires newer hardware and 64 Bit Windows)
  • A Bootable USB for a Legacy BIOS with the MBR partition scheme (Necessary for older hardware and 32/64 Bit Windows)

The UEFI BIOS was released in Late 2010 and became standard in about 2012. As a rule of thumb all systems older than 2010 will only have a Legacy BIOS and all systems >2012 will have a UEFI BIOS. For systems that are between 2010-2011 it depends whether Dell updated the BIOS or not.

The main advantages of UEFI and GPT for Windows 7 64 Bit are:

  • Support >2 TB HDDs/SSDs
  • Support for up to 128 partitions opposed to 4
  • Boot Record stored in multiple partitions making OS Boot more robust
  • SecureBoot but this Security Feature is not supported by Windows 7 and has to be Disabled

I will make some brief notes about the UEFI BIOS and Legacy BIOS and partition schemes before instructing on the use of Rufus.

Variant A: Globally Unique Identifier Partition Table (GPT) Partition Scheme for UEFI Computer

Use with Dell hardware and Windows 7 64 Bit with a UEFI BIOS (all systems later than 2012). For optimal results

Note: The updated Windows 7 64 Bit installation media provided contains USB 3.0 support.

The GPT partition scheme is not supported on Windows 7 32 Bit. It is not recommended to run Windows 7 32 Bit on a UEFI BIOS as the limitation of 4 GB of RAM will severely cripple your hardware. Moreover drivers are usually not available for Windows 7 32 Bit on a UEFI BIOS. Instead of natively installing Windows 7 32 Bit on modern hardware Virtualisation with VMWare is recommended.

Variant B: Master Boot Record Partition Scheme for BIOS or UEFI Computer

Use if your system has a Legacy Basic Input Output System (BIOS) and Windows 7 32 Bit or Windows 7 64 Bit. Most systems <2011 have a Legacy BIOS.

Using Rufus to Make a Bootable USB

Once you have the .iso and Rufus downloaded, launch Rufus:


Select yes at the user account control prompt.


The order in which you use Rufus is very important…


To the top select your USB Device, it must be 8-16 GB.


Next although its at the bottom you must load the .iso:


Select the .iso you wish to make a Bootable USB from and select open:


Now the most difficult part, here you must select the partition scheme that you want either the “GPT partition scheme for UEFI” or “the MBR partition scheme for BIOS or UEFI-CSM”.


In most cases if you select the Partition Scheme and Target System Type as “GPT partition scheme for UEFI” the File System should be automatically selected as “FAT32”. “FAT32” is needed to pass SecureBoot and usually the recommended setting. For Windows 7 however SecureBoot isn’t supported and because the install.wim of the updated Windows SP2 64 Bit .isos is greater than 4 GB NTFS will have to be selected instead of FAT32 (FAT32 only supports file sizes up to 4 GB). USBs made with this configuration will still boot providing SecureBoot is Disabled.

If you select the Partition Scheme and Target System Type as “MBR Partition Scheme for BIOS of UEFI-CSM” the File System should be automatically selected as “NTFS” if not amend it.



Once you have the settings ready select Start:


Select Ok to acknowledge that you are going to format the USB flash drive:


Rufus will now make the installation media.


Once its completed the task, the progress bar will be full and it will say Ready below it. You can now close Rufus. You have your Windows 7 Service Pack 2 Reinstallation USB prepared:


Additional Notes for a UEFI BIOS

As hardware advances newer drivers are needed in order for Windows to recognise and utilise input devices and recognise the storage controller to copy Windows Installation Files to the HDD/SSD and Later Load Windows. Microsoft have been way behind the times and failed to update their Windows 7 Installation Media in accordance to Intel Hardware. If one tries to use outdated installation media on a modern system the mouse and keyboard may not be responsive on the first screen because no USB 3.0 drivers are present:


If one manages to get by this screen by use of a USB 2.0 port or Laptop Touchpad/Keyboard (or have USB 3.0 drivers included in their installation media). They may reach an additional hurdle and get the following error message due to the lack of SATA preinstallation drivers meaning the Windows setup cannot access the HDD/SSD during installation:


“A required CD\DVD drive device driver is missing. If you have a driver floppy disc, CD, DVD, or USB flash Drive, please insert it now. Note: If the Windows installation media is in the CD/DVD drive, you can safely remove it for this step.”

Note: This error message also occurs if the installation .iso downloaded is incomplete or the Bootable USB made is corrupted. Note on checking the .iso checksums are present in my installation guides to reduce the chances of this.

Note if you have a UEFI BIOS you’ll likely need to incorporate USB 3.0 drivers otherwise your Windows 7 installation will fail. To do so see my guide on the Intel USB 3.0 Creator Utility. You may also need to prepare SATA Preinstallation Drivers. To do so see my guide Downloading, Preparing and Loading SATA Preinstallation drivers.

Notes on OEM System Locked Preinstallation

These .isos will only activate with the Activation Backup and Recovery Program if and only if Dell (or other OEM) has verified the Legacy BIOS or UEFI BIOS as eligible for Windows 7.

1. Systems with a Windows 7 OEM COA

Eligible Dell systems should have shipped with a Dell Windows 7 COA affixed to the system. The Windows 7 Edition and 25 digit product key is printed on the Code of Authenticity (COA). The key on the COA is not needed (so don’t fret if its faded) as Dell OEM System Locked Preinstallation is applied i.e. a generic product key is input from the Dell Windows 7 Reinstallation .iso and Offline Product Activation occurs.

Note however that Dell systems shipped with Windows Vista or Windows XP within the period 6 months-1 year before the release of Windows 7 will be eligible for Dell automatic System Locked Preinstallation activation if their MBR BIOS has been updated. Microsoft made the Upgrade to Windows 7 free for systems purchased with Windows Vista or Windows XP during this period.

The COA affixed to the system looks like the following:

Windows 7 COA

To prevent the COA from fading the COA is likely residing in the battery compartment of Laptops and inside the computer cover of Desktops. Its advised to use your smartphone to take a picture of it before installation.

Laptop COA

2. Systems with a Windows 8.1 Pro or Windows 10 Pro OEM System Locked Preinstallation Key

Systems shipped with Windows 8.x Pro or Windows 10 Pro from major OEMs also have an eligible UEFI BIOS and one may install Windows 7 Pro via Downgrade Rights. There is no COA affixed to these systems and hence no unique 25 digit Windows 7 OEM product key. This isn’t an issue as a Dell Windows 7 Reinstallation .iso will result in automatic offline product activation when used on an eligible Dell system.

Eligible systems for Downgrade Rights to Windows 7 Pro will have a sticker like the following affixed:

win10Pro Win8Pro

Systems with stickers like the following are not eligible for Downgrade rights and will not activate with the ABR Program:

Win10Home Win8Home Win8Bing


3. Dell Systems with a Windows Vista or Windows XP COA

In general, systems sold with Windows Vista or Windows XP will not be eligible for OEM System Locked Preinstallation and will require a Retail Product Key.

There are a few exceptions to this case however, Dell systems sold 6 months-12 months before the release of Windows 7 were eligible for a Free Upgrade to Windows 7. The Edition of windows 7 should should match the Edition of Windows Vista on the COA affixed to the system (if the COA isn’t already a Windows 7 COA):

  • Windows Vista Home Premium → Windows 7 Home Premium
  • Windows Vista Business → Windows 7 Professional
  • Windows Vista Ultimate → Windows 7 Ultimate

These systems known as Late 2008 systems – Late 2009 systems and must have their latest Legacy BIOS Update for Dell OEM SLP Activation to work. Some Mid 2008 systems may also automatically activate but I don’t have all the hardware to hand to test.

Adamo Desktops

Dimension Desktops

Inspiron Desktops

Inspiron Laptops

Latitude Laptops

OptiPlex Desktops

Precision Desktops

Precision Laptops

Studio Desktops

Studio Laptops

Vostro Desktops

Vostro Laptops

XPS Desktops

4. Non-Dell Systems

These Dell Windows 7 Reinstallation .isos won’t automatically activate when used on a non-Dell as Dell OEM SLP will be rejected. They will likely work on Alienware also.

This can be applied for other OEMs such as Lenovo (including IBM), HP (including Compaq), ASUS, Acer (including Gateway, eMachines and Packard Bell), Samsung, Sony, Toshiba, MSI and Fujitsu systems using the ABR program see Applying OEM System Locked Preinstallation. Leave a comment if you use the Dell Windows 7 Reinstallation .isos on a non-Dell and successfully activate using the ABR program later.

Activation can also be used by inputting an OEM key or Retail key. To do this right click the start button and select properties. Change the product key at the bottom. In some rare cases phone activation may be required.

* This can be used for other OEMs however I don’t have the cert files and this requires one to backup the cert file in advanced.

Delete the EI.cfg file

The ei.cfg can be deleted when the Bootable USB is made which will allow installation of all Editions of Windows 7 or alternatively Windows 7 N for a Corresponding Architecture.

Open up the USB in Windows Explorer go to the sources folder and look for ei.cfg and delete it.

When you install Windows 7 you will be prompted to select your version and you can now choose starter or Home Basic if you have used the 32 Bit .iso.





Deletion of this file will allow for Windows 7 Starter and Home Basic if you used the 32 Bit .iso.


Its advised to install Windows 7 without a Product Key to initiate a 30 Day Trial Install and then to reapply Dell OEM System Locked Preinstallation using the Activation Backup and Recovery Program.

Install Windows 7

To install Windows 7 see Windows 7 Installation in a UEFI BIOS or Legacy BIOS.

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91 thoughts on “Download Windows 7 SP1 Commercial OEM and Retail .iso

  1. There is a mistake in the text, because links for professional and ultimate edition x64 lead to same URL (for Ultimate edition)…

    1. You need to purchase a product key or you can install without one for a 30 day trial.

      If you have a system which came with Windows 7 Home Premium OEM preinstalled e.g. from Dell there should be a COA affixed to the system (maybe in the battery compartment of laptops or computer cover of desktops).

      For more details see Windows Reinstallation Guide/A Clean install of Windows 7:

      You can purchase a retail/OEM Windows 7 Home Premium license from the likes of NewEgg, Amazon etc. and input the product key provided to activate.

  2. I’m going to use your files and tutorials to do clean installs of windows 7 on (3) oem machines this weekend (all machines have windows 7 COA stickers). I figured clean installs are going to be MUCH faster than installing via the oem recovery media, which puts a massive amount of bloatware that bleeds everywhere…no matter how hard I try, I cannot get rid of it all. I’ve already contacted microsoft support, and they said that using the digital river iso’s on oem machines is perfectly fine…as long as the product key on the COA sticker is valid for the windows 7 version on the iso. Thanks so much for putting this together!

    1. Amy ensure you backup the SLP Activation of each install using the ABR program before clean installation see here:
      This will save a lot of hassles with Microsoft Product Activation in particular if the COA is faded. I only have the Dell activation files so this is particularly important if your systems are not Dells.

      Clean installs have always been much faster and efficient in my experience.

    1. Microsoft has a free tool that will help you make the recovery media for either 8 or 8.1………you have to have the product key or you would have had to make a system image prior to this or your machine would haved had to shipped with 8.1 pre installed

    1. Use the Home Premium or Professional 32 Bit version and create a bootable USB.
      Once the bootable USB is made delete the ei.cfg file. The ei.cfg will select the version to install automatically and deleting it gives you a screen presenting you with the option to install Starter. This is explained in more detail above.

  3. Would the pro install be fine for installing on a brand new hard drive on a HP Probook (6560b)

    1. If you are trying to perform downgrade rights then you need installation media with HP system locked preinstallation as no Windows 7 key is provided for downgrade rights. I have these for Dell systems listed here

      For HP I have the files for Home Premium and can probably make these up for Professional and Ultimate from that (I have not uploaded these yet and these are untested).

      If the system has a Windows 7 Professional COA included then you can use the 25 Digit product key on that and manually activate via phone.

  4. I bought a new Dell Windows 7 Professional 64-bit SP1 installation DVD on eBay. The intended recipient PC will not boot to it. I can not open the CD. I have three PC’s running here. They don’t recognize it. What easy step have I missed?

  5. This is an E521. Oddly, it has a Vista sticker but XP OS. Just as when I try to boot to it, when I try to read to it in Explorer, the DVD drive eventually just flashes and everything stops.
    OK now get this. I have a ten year old Compaq Presaro with XP. I push in the disc and it says blah blah your PC isn’t up top specs for this OS. But I can read it in Explorer, see the folders and everything.

    1. Okay so you have a Windows Vista Business COA with downgrade rights to Windows XP. Firstly did you get a new product key with the Reinstallation DVD, if not you should know that the System Locked Preinstallation key from the Windows 7 Reisntallation DVD will be rejected in your system as Dell never sold it with Windows 7.

      The DVD drive in the E521 does it read other DVDs? You can try a lens cleaning CD as there may be some dust blocking the DVD laser. Its also possible that the DVD laser has failed (if it can’t read other DVDs this is likely the case):

  6. Thank you so much for your response.
    Yes, I have a product key.
    The other PC is old, too, a P4 powered unit, and it won’t read the disc either.
    The Dell E521 will not read it, and I installed the new HDD and tried with an XP disc so I know the DVD player is working OK. I think this is just too much BS and I’m going to send it back. The seller said I could install this on any computer blah blah blah.

    1. The Pentium 4 PC will likely have a CD drive only therefore won’t read a DVD. You can install using a retail .iso and make a bootable USB as instructed on this page.

      The important thing is the product key not the DVD.

  7. Thank you so very much for your interest and responses. I used burnaware (free) and installed the OS with no problems, except the last two times setup rebooted it booted to USB and I had to manually redirect the boot to HDD. Very simple, very easy to adapt to a new way, even for me.

  8. THANK YOU!!! Perfect helper. After hardware failure all I needed was a $50 new hard drive in my Dell laptop and this instruction set.