I would run Ad-aware and Spybot again since nothing should be trying to install anymore. Then do the following:
The Temp folders should be cleaned out periodically as installation programs and hijack programs leave a lot of junk there. Download
CleanUp! (
Alternate Link if main link don't work) and install it. Run CleanUp! and click on
CleanUp! button. When it asks you if you want to logoff, click on Yes.
If something is bad on the other account, HijackThis should be able to pick that up also. Not sure how it would work on a external hard drive since it's not the drive with the Operating System. Copy a version of HijackThis in there and try running it.
Your log is clean. If you disabled System Restore, make sure to enable it now.
To help prevent future spyware installations/infections, please read the Anti-Spyware Tutorial (
http://www.greyknight17.com/spyware.htm#prevent) and use the tools provided.
Are there any problems now? If not, you should be set to go.