Built into Windows 10 and 11, it provides real-time protection and automated scans. You can run a "Quick scan," "Full scan," or "Offline scan" (which restarts your PC to scan before the OS loads) through the Windows Security settings .
Effective virus scan and removal can often be achieved without purchasing expensive software by leveraging built-in tools and reputable third-party free scanners.
If you suspect an infection that built-in tools missed, these third-party options are highly rated:
Provides a powerful engine for scanning and removal, along with simple tools for scheduling scans.
For a thorough cleanup of an infected PC, follow these steps: Free Online Virus Scan & Removal Tool - ESET