Solved: Windows 7 update no longer works at all

I had some issues installing my updates initially, so I did them in small chunks in order to prevent my computer from freezing up. Finally I was ready to install service pack 1, but the installation continued to fail. After trying many things, Windows thinks that I have never installed any updates at all, and can't search for new ones. When I try, this is the error I receive:

"An error occurred while checking for new updates for your computer.

Error(s) found:
Code 8007370B Windows update encountered an unknown error."

It also says:

Most recent check for updates: Never
Updates were installed: Never

Which is of course not true. I'd like to try uninstalling these updates so I can try again, but I can't do that if it thinks they aren't there.

I have tried using the Update Readiness tool, which claims to be successful, but changes nothing.

I have run the update troubleshooter which claims to fix two issues, but changes nothing.

I have tried to run sfc /scannow as suggested by many people, but I receive this error:
"Windows Resource Protection could not perform the requested operation."

I have tried stopping the Windows Update service, deleting the Software Distribution folder, and restarting the service, but it changes nothing.

I'm at my wit's end; this is a company computer and I really need to get it working again. Any help would be greatly appreciated. Thank you!