Reinstall the system. How to save backup c disk?

1, if you can enter the safe mode, directly enter the safe mode for backup. The easiest way. In some cases, it is impossible to enter. Consider other methods.

If there is another machine, you can remove your hard disk.

Connect to another machine, of course, not as the main disk. ...

Back up through that machine.

three

Make the current C disk into a GHO file with the GHOST method and put it in other partitions.

After completing the system again, use the browser dedicated to GHOSTEXP and ghost image to open the copy and extract it.

Of course, if you are not familiar with it, try not to operate it manually. I'm afraid I'll lose it accidentally.

It is ok to ask someone for help, but it is more troublesome.

It is also right to work hard for others for your own data, hehe.

Tip: Don't install the software in the system area in the future, or you will always back up a lot of things, including my documents, and don't set it in the system area, which is very troublesome. If they are all set in the non-system area, the trouble of backup will be avoided.