1, don't install too much software, you need to clean up some uncommon software. Tencent Computer Manager-Software uninstall function is quite good. It can be cleaned more cleanly.

2. Don't have too many junk files, clean them up. Tencent computer housekeeper cleans up the garbage and sweeps it (regularly).

There are many temporary files on the Internet and other systems, which should be cleaned up.

4. The available space in the system area is too small to expand the remaining space. If it is win7, it is recommended that the system partition is 50G+.

5. There are viruses or Trojans in the system. Firewall and antivirus software are recommended. Recommend Tencent computer housekeeper, free software. We have embedded anti-virus engines in world-class anti-virus software such as cloud anti-virus engine, anti-virus engine, Jinshan cloud anti-virus engine, AVIRA anti-virus engine, Red Umbrella and anti-virus repair engine! Ensure anti-virus quality.

6. There are too many partition fragments in the system, and partition fragments should be sorted regularly. Defragmentation software comes with the operating system.

7. Special attention should also be paid. If the notebook is used for a period of time, the fan is dusty, which may lead to slow heat dissipation and affect performance (Tencent Computer Manager-Toolbox-Hardware Detection, always pay attention to temperature and heat dissipation). Memory sticks can be erased with an eraser.