1, clean up the garbage

Click the Desktop Security Center and select garbage disposal;

Step 2 clean up large files

Clean up unnecessary pictures, music, videos, etc. To save memory.

3, clean up the background program

Click the menu bar key to view the background process, and click the cross to clear the process.

4. Restore the factory;

Enter Settings-Other Advanced Settings, select Backup and Reset, and restore the factory-cleaned memory.