Residual damage from windows xp repair virus

So upon returning from university, I found the home desktop in disarray. When I went to use firefox, I had a window popup from what turned out to be the windows xp repair virus. I took the necessary steps to remove it, but upon running supplementary scans with Malwarebytes and Symantec, there was other garbage still there (at least one thing that both programs said they couldn't remove). Things seem overall better now (no more website redirects), but it still seems slower than it should be and whenever the computer is turned on, there's a message from Malwarebytes that pops up and says it failed to complete what I'm assuming is removing the virus.

 

Aaaand the MGtools log

 

Things are running pretty well, but firefox is still slow to load and the system just slows down randomly (to be fair, the computer is 8 years old running off half a gig of ram).

 

C:\...\Recent(2) seems to be a small collection of recently accessed files. When I went to find C:\...\Desktop(2), even going as far as typing the path in directly, it didn't seem to exist.

Yes, that is still occurring. When I initially ran Malwarebytes, it said the system needed to reboot to finish deleting, and since then every time I turn on the computer one of the first things to load is this error message: [OpenEvent] Failed to perform desired action. Error Code: 2

Also, I turned Symantec back on (only running Steam and SuperAntiSpyware [Symantec was disabled so I could run another SAS scan just in case]) and a bit after the SAS scan finished it gave me the following warning:
Backdoor.Tidserv!inf
Action: None found
Filename: A0127501

 

Nope, after the system restore bit the notification still comes up.