Thanks Nick. Okay, well here is the story about my final customer of the day.
I got there and what I found was a disaster. The customer said that it started with a warning message that said "Your computer is infected" and it wanted her to buy something to remove it. Her son being the tech of the household was told to remove the virus and in turn made the computer BSOD on boot. So the case was screaming "Kid removed registry entries" to me.
In this case I did in fact have to take out the hard drive just to see if there was in fact any data on the hard drive. Luckily it was all there. I informed the customer that as a precaution she might want me to backup all the files in the hard drive just in case the problem is a little too deep. This was one the the few cases that I wasn't confident in fixing the problem- I hate BSOD's with a passion and they hate me just as much.
So she gave me the go-ahead with the temporary data backup- A nice extra $30 for all my gas and lunch and I was off to try and fix the problem. I knew at this point I can do a N&P but I chose not to since she was my last customer of the day- plus I did say that I was going to challenge myself today.
Before I put the hard drive back in the case I did a little manual virus removal then I put it back in the case, connected it and popped in Dr.Web and ran some basic virus scanning which removed most of the other stuff. Now that this was out of the way I managed to get the system to boot into Safe Mode but not standard mode.
I tried an MBAM, SuperAntispyware scan, Autoruns and Hijack this and couldn't find anything else in the system. I knew there was no BIOS virus or hard drive virus so I thought maybe it was some missing core files. Did a check- and nothing.
After some googling the obvious pointed itself to me. The kid when he attempted to remove the virus removed a driver file and delete the WinSXS folder thinking that it was too suspicious looking (He admitted this later).
I didn't know how to replace the WinSXS folder so I just did a N&P afterward and installed all their drivers and hardware again. Luckily they had all their software disk as well for their older software. (Microsoft Office, AutoCAD and TurboTax) so I installed those free for them.
I did some final virus testing on their old backed up data and then sent it back in there PC and got my days pay from them. They certainly got their $129.99 + $30 out of me, that's for sure...I was there for a whopping 5 HOURS!!!
I told the kid to stay out of the windows directory and to try joining some forums (not this one of course) if he wanted to learn more about how to fix computers. I directed him to BleepingComputer and he was exstatic.
All in all- it was an AWESOME day today. I have no work for the rest of the week though- so now I have a lot of free time on my hands. I might try advertising my company as best I can in the neighborhood and then do a little long overdue shopping- but I am just glad I finally benchmarked myself...never again will I do 4 in-home jobs in one day...UNLESS I charge by the hour after 6:00
OH AND HELP: Anyone know how I can restore a WinSXS folder? These things are different on every windows computer and I had NO CLUE how to fix it in the first place. On my computer they range from 3GB to 20GB so I know it's probably not easy...any advice?