Problem half way through Vista Cleaning Procedure

Hi, I was following this website's guide for Cleanup for Vista, and have run into a problem I have no idea how to handle.

I did everything as it was described, but a problem arose after I had run combofix. SuperAntiSpyware and Malwarebytes reported that they didn't find any problems.

I then went through the directions for running ComboFix. It got to step 50 and shortly after that it said that it was going to restart windows, so I let it. As windows was shutting down, some sort of error message came up that said something about a problem with a file named something like "catchme..." It closed before I could write down the name. It hadn't said anything on that walk through about a restart at this point so I was confused.

When windows started back up Combofix was open, saying that it was preparing the log, but all the stuff in my startup was starting too, including AVG. I had disabled it before I ran ComboFix, but when windows restarted, so did AVG, and the icon didn't have that little warning triangle on it, so I knew the resident shield was enabled. I am not sure if this is what messed things up. Again, there was some sort of error message somewhere after the restart involving something else with the word "catch" in it somewhere, but I was really confused at this point.

So I thought maybe that things were ok, and I would just attach the log and see what all of that meant.

However, when I moved on to the next step, my computer would not let me open RootRepeal.exe. I get the error message "Illegal operation attempted on a registry key that has been marked for deletion."

I tried to go back to the get the logs for SAS and MBAM to attach with the ComboFix log, but I found that I get the same message when I try to open these programs. THEN, I tried to open Firefox, and again got the same message (I am using a different computer to write this right now).

If it's an issue at all, I disconnected the other computer from the internet at the start of all this, I downloaded all files using the non-problematic computer, and moved it over to the problematic comp with a USB stick. I temporarily reconnected to the internet whenever I needed to check for updates on those programs. Also, I did run ComboFix from the desktop after I had moved it there from the USB stick. I really hope this is not an issue that I did not actually download it with the computer that I used it on.

Any help is appreciated. I really need some. I assume that if I do not get a response in 12 hours or so, I will probably try to go back to the restore point created before Combofix ran. I have not attached logs from SAS and MBAM because I cannot get to them now, and I cannot run RootRepeal. I have not even attempted to run MGtools, because I am pretty sure that something wrong has happened somewhere along the way. Hopefully it is somewhere within this log. Thanks in advance again.