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:
- Windows 7 with Service Pack 1 OEM and Retail Downloads from Microsoft’s Techbench
- English Checksums and File Sizes
- Create a Bootable USB for a UEFI BIOS or Legacy BIOS
- OEM System Locked Preinstallation
- Deleting the EI.cfg File (optional)
- Installation Notes
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?
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.
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… https://www.microsoft.com/en-gb/software-download/windows7 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.
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:
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
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
- Enable UEFI
- Disable SecureBoot
- Enable Legacy Roms
- SATA Operation – AHCI with a SSD Boot Drive see Upgrading to a Solid State Drive.
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…
FAILURE TO USE RUFUS IN THE CORRECT ORDER MAY RESULT IN THE WRONG TYPE OF BOOTABLE USB BEING CREATED.
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:
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.
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:
Systems with stickers like the following are not eligible for Downgrade rights and will not activate with the ABR Program:
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 (Early 2009) Legacy BIOS A08
- Inspiron Zino 300 (Mid 2009) Legacy BIOS A01
- Inspiron Zino 400 (Late 2009) Legacy BIOS A01
- Inspiron 535 (Early 2009) Legacy BIOS A03
- Inspiron 537 (Mid 2009) Legacy BIOS A03
- Inspiron 537s (Mid 2009) Legacy BIOS A03
- Inspiron 545 (Early 2009) Legacy BIOS A12
- Inspiron 545s (Early 2009) Legacy BIOS A12
- Inspiron 546 (Early 2009) Legacy BIOS A11
- Inspiron 546s (Early 2009) Legacy BIOS A11
- Inspiron One 19 (Late 2009) Legacy BIOS A06
- Inspiron 1318 (Late 2008) Legacy BIOS A06
- Inspiron 1320 (Mid 2009) Legacy BIOS A05 x86, Legacy BIOS A05 x64
- Inspiron 1410 (Late 2008) Legacy BIOS A03
- Inspiron 1425 (Late 2008) Legacy BIOS A06
- Inspiron 1440 (Mid 2009) Legacy BIOS A07
- Inspiron 14z 1470 (Late 2009) Legacy BIOS A05
- Inspiron 1545 (Late 2008) Legacy BIOS A14
- Inspiron 15z 1570 (Mid 2009) Legacy BIOS A05
- Inspiron 1750 (Mid 2009) Legacy BIOS A06
- Inspiron Mini 1010 (Late 2009) Legacy BIOS A11
- Inspiron Mini 10v 1011 (Mid 2009) Legacy BIOS A06
- Inspiron Mini 10v 1018 (Late 2010) Legacy BIOS A02
- Inspiron Mini 11z 1100 (Late 2009) Legacy BIOS A04 x86, Legacy BIOS A06 x64
- Inspiron Mini 11z 1200 (Late 2010) Legacy BIOS A06
- Inspiron Mini 11z 1121 (Late 2010) Legacy BIOS A01
- Latitude 2100 (Mid 2009) Legacy BIOS A06
- Latitude D631 (Early 2009) Legacy BIOS A12
- Latitude E4200 (Mid 2008) Legacy BIOS A24
- Latitude E4300 (Mid 2008) Legacy BIOS A26
- Latitude E5400 (Mid 2008) Legacy BIOS A19
- Latitude E5500 (Mid 2008) Legacy BIOS A19
- Latitude E6400/E6400 ATG/E6400 XFR (Mid 2008) Legacy BIOS A34
- Latitude E6500 (Mid 2008) Legacy BIOS A29
- Latitude XT2 (Early 2009) Legacy BIOS A13
- Latitude XT2 XFR (Mid 2009) Legacy BIOS A15
- Latitude Z600 (Mid 2009) Legacy BIOS A11
- OptiPlex 360 (Late 2008) Legacy BIOS A07
- OptiPlex 760 (Late 2008) Legacy BIOS A16
- OptiPlex 780 (Late 2009 Legacy BIOS A15
- OptiPlex 960 (Late 2008) Legacy BIOS A18
- Precision T1500 (Mid 2009) Legacy BIOS 2.4.0
- Precision T3500 (Early 2009) Legacy BIOS A17
- Precision T5500 (Early 2009) Legacy BIOS A16
- Precision T7500 (Early 2009) Legacy BIOS A16
- Precision M90 (Late 2008) Legacy BIOS A08
- Precision M2400 (Mid 2008) Legacy BIOS A28
- Precision M4400 (Mid 2008) Legacy BIOS A29
- Precision M6400 (Late 2008) Legacy BIOS A13
- Precision M6500 (Late 2009) Legacy BIOS A10
- Studio D540 (Mid 2008) Legacy BIOS 1.1.3
- Studio D540s (Mid 2008) Legacy BIOS 1.1.3
- Studio 1747 (Late 2009) Legacy BIOS A14
- Studio One 19 1909 (Early 2009) Legacy BIOS A10
- Studio 1440 (Mid 2009) Legacy BIOS A04 x86, Legacy BIOS A04 x64
- Studio 1435 (Late 2008) Legacy BIOS A06
- Studio 1450 (Mid 2009) Legacy BIOS A06
- Studio 1457 (Late 2009) Legacy BIOS A08
- Studio 1458 (Late 2009) Legacy BIOS A07
- Studio 1535 (Mid 2008) Legacy BIOS A06
- Studio 1536 (Mid 2008) Legacy BIOS A06
- Studio 1537 (Late 2008) Legacy BIOS A11
- Studio 1555 (Late 2009) Legacy BIOS A13
- Studio 1557 (Late 2009) Legacy BIOS A09
- Studio 1735 (Mid 2008) Legacy BIOS A05
- Studio 1737 (Late 2008) Legacy BIOS A09
- Studio 1745 (Late 2009) Legacy BIOS A04
- Studio XPS M1340 (Mid 2009) Legacy BIOS A15
- Studio XPS M1640 (Mid 2009) Legacy BIOS A15
- Studio Hybrid D140g (Late 2008) Legacy BIOS 1.1.0
- Vostro 220 (Late 2008) Legacy BIOS 1.0.16
- Vostro 220s (Late 2008) Legacy BIOS 1.3.0
- Vostro 410 (Late 2008) Legacy BIOS 1.0.3
- Vostro 420 (Late 2008) Legacy BIOS 1.3.0
- Vostro 1014 (Late 2009) Legacy BIOS A07
- Vostro 1015 (Mid 2009) Legacy BIOS A06
- Vostro 1088 (Late 2008) Legacy BIOS A03
- Vostro 1200 (Early 2009) Legacy BIOS A09
- Vostro 1220 (Mid 2009) Legacy BIOS 1.3.0
- Vostro 1310 (Early 2008) Legacy BIOS A15
- Vostro 1320 (Early 2009) Legacy BIOS A08
- Vostro 1500 (Early 2008) Legacy BIOS A06
- Vostro 1510 (Early 2008) Legacy BIOS A15
- Vostro 1520 (Early 2009) Legacy BIOS A08
- Vostro 1700 (Early 2009) Legacy BIOS A07
- Vostro 1710 (Early 2008) Legacy BIOS A12
- Vostro 1720 (Early 2009) Legacy BIOS A08
- Vostro 2510 (Early 2009) Legacy BIOS A06
- Vostro A90 (Late 2008) Legacy BIOS A04
- Vostro A840 (Mid 2008) Legacy BIOS A04
- Vostro A860 (Late 2008) Legacy BIOS A02
- XPS Adamo 13 (Late 2009) Legacy BIOS A04
- XPS 430 (Mid 2008) Legacy BIOS A01
- XPS 435MT (Late 2008) Legacy BIOS 1.1.4
- XPS 625 (Early 2009) Legacy BIOS 1.0.2
- XPS 630 (Early 2008) Legacy BIOS 1.0.13
- XPS 730 (Late 2008) Legacy BIOS 1.0.6
- XPS One (Mid 2008) Legacy BIOS 2.0.6
- XPS One 24 (Late 2008) Legacy BIOS 1.1.4
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.