What to do:
- Disconnect your computer from the internet
- Shutdown and remove the hard drive
- Scan the drive for virus, spyware and malware using another computer
- Backup your personal files
- Reinstall your hard drive into your PC, then reformat it.
- Reinstall the OS and install updates
- Install anti-virus and anti-malware software and install updates
- Install your applications and install updates
- Scan your backups for viruses
- Restore your backups
- Make a complete backup of this fresh system
Why do it?
These are the steps needed to “un-zombify” your PC. More research may be needed on your part to find out how to perform some of the steps above according to the type of PC or notebook you have. You could also hire someone to do this for you, preferably someone you trust.