Try running the Vipre Rescue program. It runs from the command prompt, and will scan for, and remove most malware, including rootkits. It normally runs when other programs won't.
Vipre Rescue download:
If the file does not download, copy/paste the following >without the quotes or brakets< into the address bar of your browser
Save to the Desktop
Double click on the VIPRE Rescue icon
When it asks if you want to extract VIPRE Rescue Scanner to your computer, click yes.
When the "WinZip Self- Extractor" prompt appears, click: Unzip
By default, it unzips to C:
Make sure the checkbox for "When done unzipping open: .\deep_scan.bat" is checked
After the files are unzipped, click OK
VIPRE Rescue will now run automatically and perform a deep (full) scan. This may take a while.
When it's done, type exit and press enter to close the program.
Also download exeHelper to your Desktop:
Double-click on exeHelper.com to run the fix.
A black window should pop up.
Press any key to close once the fix is completed.
>Please post the contents of exehelperlog.txt<
(Created in the directory/folder where you ran exeHelper.com, or, exeHelper.scr, and should open at the end of the scan.)
Without a reboot, download Malwarebytes’ Anti-Malware (black button with green and white icon) Save to the Desktop:
Double-click mbam-setup.exe and follow the prompts to install the program. (For Vista or Windows 7, select: Run as Administrator)
Run Malwarfebytes’ AntiMalware and update the program.
Once updated, select Perform Full Scan and click the scan button.
When the scan finishes, click OK in the message box, and you will see the results of the scan.
Click the Remove Selected button to get rid of the malware.
When Malwarebytes finishes, you may be prompted to reboot. If so, reboot.
>Also post the Malwarebytes log in your reply so we can see where we are at, and plan any additional removal strategy, if necessary.<