Released as KB976932, The SP1 for Windows 7 and Windows Server 2008 R2 is actually the same update package, though the setup installer is different for 32-bit (x86) and 64-bit (x64) editions. Users can allow Windows Update to roll out the SP1 for automatic upgrade, or manually download the SP1 from Microsoft Download Center for immediate update. Anyway folks, if you want to download the Windows 7 SP1 RTM [KB976932] which is available for free to download from Microsoft Download Center. (EXE), Download Windows 7 SP1 RTM for 32-bit. For 64 bit system (EXE), Download Windows 7 SP1 RTM for 64-bit. Download the combo package with 32-bit and 64-bit (ISO) Link for Windows 7 SP1 32-bit.