2. Turn off the hibernation function. Enter powercfg -h off in the start menu to turn off hibernation. The actual size of this file is the same as the physical memory, which can free up about 1-3G space for drive C. ..

3. set virtual memory: computer properties > advanced system settings > settings (performance) > advanced tab > change (virtual memory), set drive c as a paging-free file, and then set drive d as a system-managed size. After the change, it can only take effect by pressing the "Settings" button, and finally restart to complete the setting. By default, this file is 1.5 times the physical memory, which can free up about 2-4G space for the C drive.

4. Delete the automatic backup file and run the cmd program (at "Start-> Process-> Attachment"), right-click and select "Run as Administrator"; Then, enter rd/S/Q c:WINDOWS. OLD, you will be prompted to confirm whether to delete the destination folder, enter y and press Enter. Windows. The old one is the backup file of the system. The longer it drags on. It is normal to exceed 10G. Drive C can release more than 3G space.

5. Clean up the software of disk C, and delete useless programs and functions through the control panel, which can free up more than 50M space for disk C. ..

6. Remember to keep good habits after losing weight on disk C. For example, don't let go of too many things on the desktop, and organize disk C and other partitions regularly.