Free Windows C disk space-virtual memory and hibernation files

The project team has a Windows workstation, and because of the need to use the latest Kinect SDK, Windows 8.1, Memory 32G, with a 250G SSD, is divided into C drive. Recently reinstalled the system, slightly installed point software, found that only 50G left and right space available. Start looking for reasons decisively.

1. View Indexing Service

The index of Windows is a shit, slow, and very space-poisoned, but this time the index has been turned off, not the problem.

(digression, recommended a file search tool called everything , only works under Windows, similar to the Linux locate, search files are real-time, second-rate search, complete the search. If Windows itself searches for a file on the whole, ten to one, it goes straight down, but everything is no pressure. Everything the background will be indexed, but memory and disk consumption are very small. ）

2. View Individual Folder sizes

I do not often use Windows, the stupid way, a few folders manually looked at the next size, are normal, plus there are more than 100 g space not found.

("Windows" This folder has more than 20 g, this is a deep table without words)

3. View hidden files

It's nothing unusual.

4. View "system-protected operating system files"

Found that there is a papefile.sys file under the C disk has nearly 80G, a hiberfil.sys file almost 30G.

Papefile.sys is a virtual memory file. The default is more than twice times the physical memory, and even if there is no use, directly and rigidly assigned. Since very few programs run on memory requirements, the virtual memory is set to 10G directly in the control Panel. Save up to 70G.

Hiberfil.sys is used in hibernation, so it is almost as large as physical memory. For a system like Windows8.1, which is almost dormant, it is superfluous. Turn off hibernation directly. Find Your Way online:

Open cmd as Administrator, enter

Powercfg-h off

At this time, Hiberfil.sys directly disappeared, saving 30G.

5. Conclusion

The default size of virtual memory (Papefile.sys) and hibernation (Hiberfil.sys) is related to the physical memory of the machine.

the larger the physical memory, the greater the two files. for most users, the increase in physical memory, the reliance on virtual memory is smaller, but the default virtual memory will increase, very anti-human.

For workstations, this space is very scary. can be modified in combination with the actual situation. In particular, the C drive is a solid-state drive, but also to save valuable space.

For personal computers, if the memory is general, do not toss, also can not release much space.

Free Windows C disk space-virtual memory and hibernation files