Installing SP1 (KB976932) Error 800B0100

Good Day! I’ve had this problem for a very long time and should have done something about it long before, but have not. Windows Update always fails to install Windows 7 Service Pack 1 for x64-based Systems (KB976932) with the error code 800B0100. I have tried manually downloading and installing the file from Microsoft’s website. I have also gone through and installed SURT and have done a SFC...