Update your antivirus software
Run a full system scan
Run a quick scan for common threats
Check for suspicious programs in installed apps
Review startup programs for unknown entries
Scan downloads and external drives
Use a second-opinion malware scanner
Check browser extensions for anything unfamiliar
Look for unusual system behavior
Disconnect from the internet if infection is suspected
Quarantine or remove detected threats
Restart the computer and scan again
Update the operating system and software
Change important passwords after cleanup