If your computer is infected by a Virus?

If your computer is still working and you have Anti-Virus software installed - update and run the software. If you do not have anti-virus software you should download a free antivirus program (AVG, Avast, and Avira are good choices). If your computer is compromised and you cannot download/install this software - you may need to download/install the software onto a flash drive on a different computer and then put the flash drive in your computer to scan.

If this does not fix the problem you may actually have Malware or Spyware. You will need run or install software to scan your computer - there are many free options and you should try several (Malwarebytes Aniti-malware, Spybot - Search and Destroy, and SuperAntiSpyware are good options). After installing/running these you should take care of almost anything.

If your web browser is redirecting and you cannot search for software - you may need to use another computer to find the software - or use a less common search engine to find them. There are links below as well that you can use to download them.

If after running the anti-virus and anti-malware/spyware programs your computer is still not working properly you may need to have it looked at by a professional computer repair technician.