Windows 7 Build 7601 was the final major update for the OS. It included:
If your current version shows the "Build 7601 Not Genuine" message, you can often fix it without a crack using these steps: Rearm the Activation : Open the Command Prompt as an Administrator slmgr /rearm windows 7 version 61 build 7601 iso download cracked
If you need Windows 7 for legitimate testing or legacy software, Microsoft (or authorized resellers) no longer sells it, but you can consider: Windows 7 Build 7601 was the final major update for the OS