Two. It may be a virtual memory problem. Right click on my computer. -Advanced-Advanced-Virtual Memory. . Point change. . Change the virtual memory to another disk (change the C disk to 0-0. Change the virtual memory as much as possible on other disks. There is H disk in my virtual memory, the size is 4096-4096 m). Start over. So drive C has space, so I put the virtual memory on drive H. My computer. C disk 8 g. D disk 30 g. E disk 30G. F disk 30G. G disk 30G. H disk 16G)
Three. It's not about hiding documents. This may be a system restore problem. My computer's C drive is also 2G short. You right-click my computer. . In system restore, turn off the system restore front-end point √ on all drives, and then apply. It's OK when you're sure. You'd better finish before you start.
Four. It may be a temporary file. . Master of Windows optimization. Select Disk File Management in System Cleanup. . All points are scanned below √. . Then select Delete All. Because all the scanned files are temporary files and some useless disk memory files. . After deletion, the occupied disk C can be released.