1. Clean up your hard drive and delete unnecessary files.
2. Update your operating system and all programs regularly.
3. Use antivirus software and a firewall to protect your computer from malicious software.
4. Turn off background applications and programs that you don’t need.
5. Limit the number of programs running at the same time.
6. Get more RAM if possible.
7. Defragment your hard drive regularly.
8. Use disk cleanup to clear out temporary files.
9. Install an SSD for better performance.
10. Disable startup programs.
11. Adjust virtual memory settings.
12. Limit animations and special effects in Windows.
13. Uninstall unused programs.