Are you getting pop-ups or is your pc acting strange? Your anti-virus says you have no viruses?
Run a second Anti-Virus scan free from a trusted source.
ESET online scan via Facebook
There are many websites that offer free online scanning services. But beware, there are those that look like online scanners but instead infiltrate your PC.
ESET, the company behind the popular antivirus software ESET – NOD32 have released an online scanner. The best thing about the online scanner by ESET is that it is a Facebook application and you can use it right from Facebook.
Just go to the ESET online scanner application page in Facebook.
Authorize it to run from your account. Once done, you will see a page with a big button saying “Run the Scan”. Click on it and you will see a new popup window. ESET then asks you to download ESET smart installer that you can easily uninstall once the scan is completed. But if you are running the test on Internet Explorer, downloading this tool won’t be necessary.
ESET say that this tool can detect and remove malware from your computer. ESET online scanner uses the same ThreatSense scanning technology as used in ESET smart security and NOD32 antivirus software. ESET online scanner therefore offers free online scan for your computer.