Check for sudden slow performance
Look for frequent crashes or freezes
Watch for unexpected pop-ups or ads
Check for unknown programs or apps
Review browser homepage and search engine changes
Look for unusual disk, CPU, or network activity
Check for disabled antivirus or firewall settings
Scan files with updated antivirus software
Run a full system malware scan
Check for suspicious email or message activity
Look for missing files or altered settings
Review startup programs for unknown entries
Check for unauthorized account logins
Use a second malware scanner for confirmation
Disconnect from the internet if infection is suspected