Windows Backup Issue...

Based on the error message I'd run from an elevated command prompt:

vssadmin list writers

look for errors.

Well that looks like a problem. I think you should be get a list of writers like this

SlasherIT said:

I guess so... So what can I do about it?

My knowledge is limited so I can't give you a definite answer but look at these links
“vssadmin list writers” does not return any writers | microtom.net
and
Explanation of Regsvr32 usage and error messages

Someone else may know more.

SlasherIT said:

I tried the commands from the first link you gave me, and along the way it kept giving errors loading up some dll's. I still couldn't get it to work...

That's the best I can do at this stage.
Someone may be able to come along and give you better support.