Welcome to the forum.
I'm not sure of all that you have tried, but to get you started. Is there anyway you can download superantispyware and run it on the other computer? Maybe copy it to a cd (not flash) and install it on the other one. This may help to get the computer at least usable again.
Download
superantispywareFirst update SAS Then
Under Configuration and Preferences, click the Preferences button.
Then click the Scanning Control tab.
Under Scanner Options make sure the following are checked
- Close browsers before scanning
- Scan for tracking cookies
- Terminate memory threats before quaranine.
leave the others unchecked.
Return to the main page by clicking close on that screen. On the main screen, under Scan for Harmful Software click Scan your computer. On the left check C:\Fixed Drive.(and other fixed drives)
Under Complete Scan, choose Perform Complete Scan.
ยท Click Next to start the scan.
When the scan is done, quarentine everything found . Reboot if asked. You can post the log in your next reply if you wish.