Keith, good day to you!
Ok, I went through all your steps.
sfc /scannow went fine. It did not ask for a cd.
chkdsk seemed to go alright. Then when it was done and it got back to the desktop, I first noticed that the little avast icon had a red x on it. So I clicked it and an error box came up saying:
avast: The AAVM subsystem detected a RPC error.
The operation could not be completed.
Also there was a message box from my WinPatrol, saying that scotty had detected a new IE addon had been installed and did I approve it:
C:\Program Files\Spyware Guard\dlprotect.dll
I clicked Yes to approve.
So then I went to TuneUp to run the cleaners you suggested, but the shortcut wouldn't work, then I tried IE shortcut it didn't work, so then I tried all my shortcuts and nothing was opening, I couldn't even get task manager to come up.
I thought I wasn't even going to be able to shut the machine down, I clicked Turn Off Computer on the start menu and it cleared the desktop then just sat there about a minute and an error box came up, I tried to jot down what it said but I may not have gotten it all:
unknown hard error
Then it finally shut down. I restarted the computer, and when it had loaded completely it was back to normal.
I then ran TuneUp Disc CleanUp and Registry CleanUp, Disc CleanUp found very minimal stuff, something like .66mb. Registry CleanUp found 18 bad entries, some to do with Winsock, a couple said invalid entry from ZoneAlarm.
What do you think about all that?
Do you want me to try the Compu-RX again?