1. Install and run a trusted antivirus software, and keep it up to date.
2. Uninstall any software or applications that are not in use or that are slowing down your system.
3. Run regular scans to detect any malware and viruses.
4. Clear out your temporary files and unused programs.
5. Close applications that are running in the background but not in use.
6. Update drivers and operating systems regularly.
7. Defragment your hard drive.
8. Use disk cleanup software.
9. Run system performance tests to check for any weak points or issues.
10. Limit the number of programs that start on boot-up.