Why is the size of all the files in my C drive 28 4G, and the space used is 49 3G?

System Volume Information Deletion Method.

Solution: Right-click on My Computer Properties System Restore Item and select "Turn off all restores", and then delete the System Volume Information folder.

or My Computer any drive letter tool folder option to view Restore defaults.

Note: This is a system change log, which mainly monitors the changes in each panel, not a virus).

system volume information"Deletion.

In general, the folder C: System Volume Information is inaccessible, and you need to add NTFS permission.

1.My Computer - Tools - Folder Options - View - Turn off Hide Protected OS Files (Recommended) - Hide Files & Folders Select Show all files and folders.

2.Looking at the properties of C: System Volume Information, there will be an additional security option - Add - Advanced - Find Now - Double-click on your current username - OK. (If you don't see the security options.)

My Computer - Tools - Folder Options - View - Turn off Simple Sharing).

3.Go back to the C: System Volume Information property - Security Options - and put the full control point in Permissions.

4.At this point, you can go to C: System Volume Information, what's in it, delete it!to delete it completely"system volume information"

1.On the run, enter""(Group Policy) program Computer Configuration Administrative Templates System Restore right, turn off System Restore, double-click to open it, Enable.

2. On the run, enter""(Group Policy) Programs, Computer Configuration, Administrative Templates, Windows Components, Terminal Services, Windows Installer will have one on the right"Turn off the Create System Restore checkpoint"Double-click to open it, select Enable.

After showing the hidden files, there will be a recycled in each folder, please don't worry that one is ** station.

But it's not enough to choose to show all files, there is also the option to show hidden system files. In this way, I guess you will be able to find it.

How about you clean up the system with software like Super Bunny? Another possibility is that you have installed dynamic space allocation software such as rain and sunny weather, which is not usually visible, but it takes up a lot of space! Hehe, I don't know if that's right?

If possible, you can take a screenshot of the program folder of the C drive and send it to see, maybe it can help you, hehe.

It's not that if you don't install other things on the C drive, it won't be affected.

Installed development tools, burning tools or other very large software, will not only be installed under the disk you specify, he must also install part of the C drive, as long as you install 2 or 3 of this software, your C drive can be used up.

It must be that you have installed too much software, such as one-click restoration, which takes up space.

Reinstall the system, divide the C drive into larger ones, and don't know how big your computer's hard drive is. If it is 80G or 160G, C is set to 20 or 40 respectively, which is enough, and the installation files do not need to be installed on C disk, and it can be solved by installing it on other disks!

Clean up the system garbage, you can use Master Lu to clean it up, and then the virtual memory should not be too big, 1 or 2G is enough.

Of course, it's insufficient.,Clean up the garbage.,Clean up the restoration point.。

Or simply divide the C set into forty or fifty g.s

I don't know if there's this file in the hidden file you said. If not, the system's protected files are still hidden. Turn on my computer.

Tap Menu - Tools - Folder Options. Select View tab. In the advanced settings, remove the hidden protected system files.

Only then will all the files be displayed. If there is this file. The space is not occupied by the file.

Nowadays, many brands of computers have their own backup systems. Generally, they reserve a certain amount of space on the C drive to put the system backup. This part of the space cannot be displayed in the C drive.

It is also impossible to read. It is a piece that is drawn directly in the sector. On Desktop, on My Computer, right-click and select Manage.

In the pop-up window, select Disk Management. You should be able to see this part of the reservation in the window on the right. If there's not enough space.

There is a problem with the partitioned table. It could be caused by an error. It could also be the work of a virus.

Words like this. It's better to have the disk lattice. Reinstall the system.

It is possible to set up a virtual cache for it.

Format it and reinstall the system.

If there is a virus, you'd better format it, and some diseases can't be killed.

1.After entering the C drive, do you select all the files to check the capacity?

2.Judging by your screenshots, the capacity of those folders is relatively normal. After the XP system is installed, Kaiyin is about five or six G, and after installing some software, it is usually about ten G, so there must be something you haven't noticed.

3.If it is me, I will try to use a disk management software to carefully check whether there are any abnormal files in this disk.

4.I'll wonder if there's something wrong with the disk itself, so I'll try to clean it up with a disk defragmenter.

5.I doubt that there will be a virus, so I will definitely clean my computer with antivirus software; I would doubt that there would be a problem with the optimization software I was using, so I would try to optimize it with another optimization software.

6.If I still can't find the cause and I am reluctant to reinstall the system, I will try to transfer all the applications to a different disk to make some space for the C drive.

7.Reinstall the system.

It's not easy to solve it just by looking at the picture, and it's generally verified by following some methods. Generally, the priority is to consider the software, because the probability of hardware damage is a little smaller, but if it is a very old computer, it is difficult to say. It's still up to you to keep verifying.

The panacea is to reinstall the system.

Remove the ditch in front of "Hide protected operating system files" and look again.

There are also little pot friends! Asking people to do things don't use their first socks to rush to Shiga so much! Be humble! Hahaha!

It is very clear to tell you that there may be viruses in the C drive, if there is no antivirus, enter the safe mode to see if it has not changed.