Windows 7 RTM Build 7600 have been leaked. Download it from here. By the way, here are 2 ways how to activate Windows 7 RTM 7600 x86 and x64.
Execute activator like a admin and wait "Windows is activated", now retart (not before!)
Now remove watermark (Instruction inside), enjoy!
Windows 7 7600 x86 and x64 activator (link 1)
Windows 7 7600 x86 and x64 activator (link 2)
Windows 7 7600 x86 and x64 activator (link 3)
2. Timeer crack (Replaces RTM with RC Activation)
To activate, You will need to open how to crack.txt.
Remember, You will need a RC Key to activate.
Download: Windows 7 7600 Activator (Replaces RTM with RC Activation)