Since you have two PCs, I would let this one do a free ESET online scan (It can take 3 or more hours to complete):
First clean up System Restore to get rid of any malware that may be left and to make the ESET scan run faster.
Copy the following:
:Commands [CLEARALLRESTOREPOINTS] [Reboot]Run OTL. In the Custom Scans/Fixes box at the bottom, paste in the copied text (Ctrl + v) and then hit Run Fix.
Use IE and go to http://eset.com/onlinescan and click on ESET online Scanner. Accept the terms then press Start (If you get a warning from your browser tell it you want to run it). You should probably pause Comodo's a-v and if it complains about the connections ESET makes please allow them.
# Check Scan Archives
# Push the Start button.
# ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
# When the scan completes, push LIST OF THREATS FOUND
# Push EXPORT TO TEXT FILE , and save the file to your desktop using a unique name, such as ESETScan. Include the contents of this report in your next reply.
# Push the BACK button.
# Push Finish
# Once the scan is completed, you may close the window.
# Use Notepad to open the logfile located at C:\Program Files\EsetOnlineScanner\log.txt
# Copy and paste that log as a reply.
Let's also try the bitdefender quickscan.
When it finishes there is a View Report option at the bottom. Click on it and copy and paste the report (even if it says nothing found).
I'm not really fond of Comodo's anti-virus. I think it's fairly weak. I use the free Avast myself http://www.avast.com...ivirus-download and then add the free Online Armor firewall http://www.online-ar...-armor-free.php . Avast is very good about warning you when you hit a bad site and it also has a wonderful feature called a boot-time scan. A boot-time scan runs before most of windows has loaded so can find stuff that would otherwise hide from a regular anti-virus. Online Armor seems smarter than Comodo's firewall and doesn't ask you so many dumb questions.
This is how it works if you want to try it:
Once you have it installed and it has updated:
Click on the Avast ball. Then click on Scan Computer, then on
Boot-Time Scan then on Settings. Change the Ask at the bottom to Move to Chest. OK then Schedule Now. Reboot and let it run a scan. It may take hours.
Once it finishes it should load windows. Click on the Avast ball and then on Scan Logs, select the Boot-time scan report then View Results. How many did it find?
Text version of the report is usually at: C:\Documents and Settings\All Users\Application Data\AVAST Software\Avast\report\aswboot.txt but I think it tells you when it first starts running where the report will be.