1. Regularly clean up unused files, programs and temporary files.
2. Uninstall unnecessary programs that you don’t use often.
3. Defragment your hard drive regularly.
4. Run virus and malware scans to ensure your system is protected from infections.
5. Update your software and operating system regularly.
6. Optimize your startup programs by limiting the number of applications that run when Windows starts.
7. Use a good PC cleaner program to remove junk files.
8. Monitor your system memory usage to ensure that enough RAM is available for your applications to run smoothly.
9. Keep your hardware drivers up to date.
10. Make sure your computer uses the latest BIOS version.