Visit the Microsoft Update Catalog and search for KB3125574 .
Verify the SHA-1 hash of your ISO. For Windows 7 Ultimate x64 SP1, the hash should be: 36AE90DEFBAD9D9539E649B193AE573B77A71C83 (varies by language/edition). Windows 7 64 Bit Service Pack 2 Iso Download High Quality
Note: Install the SSU first, reboot if prompted. Visit the Microsoft Update Catalog and search for KB3125574
After downloading the ISO file, mount it on your system using a virtual drive or burn it to a DVD. Then, follow these steps: follow these steps: Instead
Instead, there are two different things people usually mean when they search for this: