This is a list of files to use in conjunction with Windows 7 SP1 (Media Refresh 2011).
Rufus
Use Rufus to make a Bootable USB:
USB 3.0 and NVMe Driver Support
This allows for Windows 7 Installation on up to 6th Generation Intel Skylake Hardware. Use the Windows USB Installation Tool from Gigabyte:
https://www.gigabyte.com/Motherboard/GA-Z170X-Gaming-G1-rev-10#support-dl-utility
Scroll down on the Gigabyte website to get the tool.
OEM Cert Collection
I have put together the OEM Cert Collection along with an associated 2 line script to install the Cert and Apply the associated OEM SLP Key. This allows one to apply the OEM SLP activation mechanism for Dell, Alienware, HP, Lenovo and all other major OEMs shipped with Windows 7 or Windows 8.x Pro (Downgrade Rights to Windows 7 Pro) or Windows 10 Pro (Downgrade Rights to Windows 10). For these systems, install Windows 7 without a Product Key. After Installation copy the OEM folder containing the cert and OEM SLP key to your C:\ Drive and then run the script file.
It is available as a .zip file here:
https://drive.google.com/file/d/1d2xFAA6aDJu3PEtLD2Sv4WUfxg5lTwBl/view?usp=sharing
Windows 7 64 Bit
Service Stack and Convenience Rollup
https://download.microsoft.com/download/5/D/0/5D0821EB-A92D-4CA2-9020-EC41D56B074F/Windows6.1-KB3020369-x64.msu
http://download.windowsupdate.com/d/msdownload/update/software/updt/2016/05/windows6.1-kb3125574-v4-x64_2dafb1d203c8964239af3048b5dd4b1264cd93b9.msu
Perquisite IE11 Updates
http://download.microsoft.com/download/6/C/A/6CA15546-A46C-4333-B405-AB18785ABB66/Windows6.1-KB2729094-v2-x64.msu
http://download.microsoft.com/download/1/4/9/14936FE9-4D16-4019-A093-5E00182609EB/Windows6.1-KB2670838-x64.msu
http://download.microsoft.com/download/5/A/5/5A548BFE-ADC5-414B-B6BD-E1EC27A8DD80/Windows6.1-KB2834140-v2-x64.msu
http://download.microsoft.com/download/9/1/C/91CC3B0D-F58B-4B36-941D-D810A8FF6805/Windows6.1-KB2639308-x64.msu
https://download.microsoft.com/download/B/D/9/BD9A7786-6C54-4425-BE04-7914E5D77FBC/IE-Spelling-en.msu
IE11
The Latest Security Rollup
Sort by the latest date, use the latest (non-preview) Windows 7 for x64-based systems update only.
http://www.catalog.update.microsoft.com/Search.aspx?q=monthly%20rollup%20for%20Windows%207
Microsoft .Net Framework
https://www.microsoft.com/en-us/download/details.aspx?id=55167
Windows 7 32 Bit
Service Stack and Convenience Rollup
https://download.microsoft.com/download/C/0/8/C0823F43-BFE9-4147-9B0A-35769CBBE6B0/Windows6.1-KB3020369-x86.msu
http://download.windowsupdate.com/d/msdownload/update/software/updt/2016/05/windows6.1-kb3125574-v4-x86_ba1ff5537312561795cc04db0b02fbb0a74b2cbd.msu
Perquisite IE11 Updates
http://download.microsoft.com/download/B/6/B/B6BF1D9B-2568-406B-88E8-E4A218DEA90A/Windows6.1-KB2729094-v2-x86.msu
http://download.microsoft.com/download/1/4/9/14936FE9-4D16-4019-A093-5E00182609EB/Windows6.1-KB2670838-x86.msu
http://download.microsoft.com/download/F/1/4/F1424AD7-F754-4B6E-B0DA-151C7CBAE859/Windows6.1-KB2834140-v2-x86.msu
http://download.microsoft.com/download/3/1/D/31DB4F4F-207D-416E-9A07-FBD9E431F9FB/Windows6.1-KB2639308-x86.msu
https://download.microsoft.com/download/B/D/9/BD9A7786-6C54-4425-BE04-7914E5D77FBC/IE-Spelling-en.msu
http://download.windowsupdate.com/c/msdownload/update/software/secu/2018/07/windows6.1-kb4338818-x86_259a449211c1ff2f3a2d7193ea0930bd3ca334a9.msu
IE11
The Latest Security Rollup
Sort by the latest date, use the latest (non-preview) Windows 7 for x86-based systems update only.
http://www.catalog.update.microsoft.com/Search.aspx?q=monthly%20rollup%20for%20Windows%207
Microsoft .Net Framework
https://www.microsoft.com/en-us/download/details.aspx?id=55167