When I opened it again, the setup program was asking me for the install disk (it was an ISO image mounted in Daemon Tools) and I decided to cancel the setup and start from scratch again. First I clicked the cancel button and waited for around 3mins doing nothing, then I decided to try fiddling around, task switching and opening the start menu and the like, which I could do.
I finally got to close the setup with Task Manager, but the initial lag from the moment I clicked the cancel button never went away. I then tried to uninstall autocad, and I got a message that AutoCADSetup.res couldn't be found or something. Since then I've tried System Restore all the way back to since before I installed TuneUp, but the lag persisted.
A check in my Event Viewer showed me that I was experiencing a lot of iaStor Event ID 9 errors. I also tried booting into safe mode thinking that it would be lagless but it also lagged when I got into safe mode. Why is this happening and what can I do to fix it? A quick check on a forum post I saw said to run Chkdsk, which I'm doing right now. I'll report any results, but feedback regarding this issue is much appreciated. Thank you in advance.
EDIT: The lag is everywhere, from the logon screen where I type in my password to the moment I turn off the computer. What used to be only a few seconds now takes more like 10 minutes or so. Really really need the help.
Edited by geno93n0, 21 May 2010 - 12:48 PM.