1. Keep your PC updated by regularly installing any updates that are available from your operating system or from the manufacturer.
2. Uninstall any unnecessary software that could be taking up valuable resources.
3. Run a disk cleanup tool to remove temporary files and other clutter.
4. Monitor your CPU and RAM usage in the Task Manager to identify programs which are using too much resources.
5. Disable visual effects that consume processing power.
6. Defragment your hard drive to increase its read/write speed.
7. Install an anti-virus program and run frequent scans.
8. Enable sleep mode or hibernation to prevent your PC from running all the time.
9. Upgrade your hardware if necessary.
10. Go through your startup items and disable any which aren’t necessary for your PC to function properly.