What is the quickest way to speed up my PC? By YL ComputingSpeed Up PC 1. Uninstall unnecessary programs. 2. Clear up temporary files and cache. 3. Defragment your hard drive. 4. Update your operating system and drivers. 5. Add more RAM memory if possible. 6. Disable startup programs. 7. Run a disk cleanup. 8. Adjust visual effects settings. Related Content:What causes a slow-performing computer?Does defragmenting a drive help with computer performance?How can I free up disk space on my computer to speed up my PC?