Recently when I open windows services (always as administrator) I get a blank list of services:

When I try and click on one of the empty lines I get this "Script Error" message:

This happens over and over again, after several times I restarted my computer. I can't pinpoint exactly when this started happening or if I made any specific changes to my computer at that time.

Someone told my to try running scf /scannow as administrator, but when I try to do that the scan stops at 34% and I get the message: "Windows Resource Protection could not perform the requested operation."

I am running Windows 7 Enterprise 64 bit, and I would really like to avoid reinstalling windows.

Does anyone know how to fix this?

Edit - Here is another attempt I made and some more information that might help:

Following WhoIsRich's suggestion, I tried the command sfc /scannow /offbootdir=c:\ /offwindir=c:\windows.
This gave the error message "The arguments passed to sfc are invalid. The offline windows directory specified points to the online system", and then I realized this command is meant to be run after booting from another system.

Since I don't have my windows installation disk right now, I used my own system to create a recovery disk, and then restarted my computer and used the recovery disk to boot.
I then ran the above command, and I got the following message: "Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.log".
I then restarted my computer and let it boot up normally. The problem with windows services persists, and the CBS.log file is a long log file with many entries, and I don't know if there is useful information in it, and if there is, how to find it.