1. Run disk cleanup and disk defragmenter regularly.
2. Remove temporary files, cookies and other unwanted programs.
3. Update your drivers and operating system to the latest version.
4. Clear the browser’s cache.
5. Monitor active processes and uninstall any unnecessary programs.
6. Run an anti-malware scan.
7. Check for dust buildup inside the PC.
8. Use a quality antivirus program to keep malware at bay.
9. Perform regular backups of important data.
10. Make sure you have enough RAM for what you need to do.