WiseDiskCleaner

Cleaning up patch packs and junk files is generally about 8- 10G.

But this is not the way. I suggest you empty a part of disk D and expand it to 80G.

Web page link

All operations are carried out under the PE system. It is recommended to make a USB flash drive, which is common in PE- Ogilvy partition tools. WePE_32_V2.0-

How to reduce the partition size when the space of drive C is too large (first move the D file to another drive, then shrink it from the left with a tool, for example, 30G is empty, and then pull it to the right with drive C, as shown below).

3. If it's troublesome, it's better to reinstall win7 and use NT6.0 quick installer. Method:

Reinstall the system, such as installing win 10 system with micro pe.

/video/av 18577049/

(It is recommended to use-AMpe toolbox _Win 10pe, WEPE _ 32 _ v 2.0- one-button automatic production of U disk PE)