1. Run a full scan using an updated anti-virus program, such as Windows Defender or AVG.
2. If you are using a Mac, run the XProtect and Malwarebytes.
3. Check for any suspicious programs running in the background.
4. Regularly update your operating system and software.
5. Install an ad-blocker to prevent malicious pop-ups.
6. Download files only from trusted sources.
7. Use a virtual private network (VPN) for extra security when browsing the web.
8. Be wary of unsolicited email attachments, links, and downloads.
9. Periodically clear your browser’s cookies and cache.