All the files in my computer C are only 4 5G, but it shows that 10G has 300M left

1 Poisoned.

A: Antivirus. 2 After you install the software, you uninstall it again, but you are not removed normally, but deleted, so that it leaves a lot of junk files in your C drive, A You can use some software, such as Super Rabbit, Optimization Master, etc. to clean up your C drive, 3 The pages you have browsed on the Internet, that is, the temporary files of the browser are left in the C drive, and after a long time, it will also occupy a large area.

A Clean up and delete useless pages.

4 If you can't, you'll have to redo the system.

Also, it is recommended that you do not touch the registration form if you do not know it very well.

If you use it, the system hibernates and takes up a lot of hard disk space like physical memory, and System Restore takes up about the amount of hard disk space.

System memory takes up about times the amount of hard disk space of physical memory.

It is estimated that there is a virus, it is recommended that you remove it, format it and reinstall the system.

The landlord opens the hidden file and the system file to see if the page file is too large.

Clear your browser's temporary files.

Clean up the registry.

Remove C: Windows Temp

And then ......Can't remember......

In addition to the system files you see, System Restore and virtual memory can also take up a lot of space, so if you want to reduce the footprint of your C drive, you can do the following:

1. Turn off System Restore, as shown below.

2. Put the virtual memory page file to other disks, refer to the following figure to help you.

This is not only already displayed,There are some that are not displayed,If you choose to show all files,Plus system protection files,Then all files will be displayed,That's the original 50G。

The consequences of indiscriminate deletion may lead to a system crash! If you don't know how to use a computer, it's best not to move around! Unless you have expert friends, or you're not afraid to trouble others!

Disk cleaned up. Method: Start - Management Tools - Computer Management - Disk Fragmentation Management.

Actually, it's not a big problem anymore.,Here's the same question I've answered before.,Just look at it yourself.,Overall, it's win7The restore point takes up space.,It's good to turn it off.,See the address for details.。

Only 20g? Both the system and the software are required for the Ao.

If you look at the problem, it's under C: Users (user folder), there's a lot of space taken up here.

Often in the statistics C disk.

, we will only select a few folders that are visible under the C drive.

After selecting all these folders, check the overall size, and find that there is a big difference with the actual occupied C disk space.

1. After deleting the file from the desktop, your ** station.

There may be no cleaned files that occupy space on the C drive.

2. Windows 7 will generally use virtual memory.

Automatically hosted on the C drive, which occupies a certain amount of space, and the hosted page file is generally a hidden file;

3. Under the general partition, there will be a hidden and inaccessible directory of system volume information, and sometimes there is no permission to view the directory, some viruses or programs may put some junk files into this folder, which is undetectable!

4. Hidden patch files; When installing system patches, the system will first create a temporary folder on the C drive for installation and more detailing; However, some patches may not delete these files after they are installed;

To sum up, the corresponding solutions are:

1. It is a 360 security guard.

and other system maintenance software to clean up the junk files of the C drive.

2. In the advanced settings of the system, set the virtual memory to the D drive or other non-C drive partitions!

3. Regularly check and kill viruses and clean up rogue software.

Plug-in to reduce the chances of virus infection.

There are a lot of system files, especially the patches that are constantly updated, all of them are hidden, and you don't see them. However, since it accounts for 90g, it means that your C disk has not been cleaned for a long time, it is recommended that you use Kingsoft Guardian or perfect uninstall soft to clean up the machine, including: clean up garbage, registry, cache files, plug-ins, unused software, etc.

It should be hidden, you may have one or more system backups, or the system files are very large.

Under normal circumstances, the system update software cache can be seen, and the virtual memory cannot be so large. Maybe you set up something like one-click restore, you click on it in turn-Control Panel-System and Security-System,Then find a system protection,Look at the protection settings box,If the C drive is enabled,You should be this arrow.,Go and adjust it.。

Is it a reinstallation of the system, there are 80g unallocated.

Haven't your computer been cleaned in a few years? Saw a lot of color**? It will leave a lot of evidence in your cookies, so it's easy to find this kind of cleaning tool... Ha ha.

Reason Analysis: This is your cThe disk is only 40G, and all the files are only 10G in total, and the rest of the excess space, which is taken up by virtual memory, and each partition has virtual memory

It will take up some space, as well as system restore (this is the most disk space, every XP or win has this system restore function), and hidden files (for example, this system file is hidden a lot, to prevent accidental deletion), and disk cache, **station, system hibernation, will take up space, these occupy 20g of your space, this is a normal phenomenon, processing method: so your best use QQ butler or 360 guard to optimize the level, startup items, cache, registry, etc., And turn off the built-in system restore on your computer, so that you can save a lot of space, and don't install any software on the C drive, don't install the software with the default installation, but install it with the option, and in the process of installation, you should also look at the next step, there are some hooked software do not hook, so that you can keep the space of the C disk.

Don't know how you view all the files only 10g, you can set to show hidden files while viewing the hard drive usage.

System folders and temporary files are checked under Hidden Files.

There are many that are hidden files

This is also the case with some restore software installed.

1. Use disk cleaning software to clean up the C drive, which can free up about 50M-800M space for the C drive.

2. Turn off the sleep function, enter the powercfg -h off command in the start menu to turn off hibernation, the actual size of this file is the same as the physical memory, which can free up 1-3G space for the C disk.

3. Set up virtual memory: Computer Properties > Advanced System Settings > Settings (Performance) > >Advanced Tab" Change (Virtual Memory), set the C disk to no paging file, and then set the D disk to the size of the system management, after the change, only press the "Settings" button to take effect, and finally restart to complete the setting, this file defaults to the times of the physical memory, which can release about 2-4G space for the C disk.

4. Delete the automatic backup file, run the cmd program (in "Start > Program >Attachments"), right-click and select "Run as administrator"; Then, enter rds q on the command line, prompt to confirm whether to delete the destination folder, type y and press enter. For the backup file of the system, the longer the time, the larger it becomes, and it is normal to exceed 10G. It can free up more than 3G of space for the C drive.

5. Click "Clean Trash" on the main interface of PC Manager, confirm that the relevant garbage type is checked, click "Start Scan", and then click "Clean Now", if there is any garbage that needs to be confirmed to clean up, you will confirm it and then carry out a deep cleanup to achieve a quick and safe cleanup of junk files in the computer.

Maybe you haven't fully set up Show all files, in the folder options view, there is also an option under Show hidden files "Hide system protected files (recommended)" to uncheck the previous check and take a look. The extra part may be virtual memory, system restore or hibernation files, but your C disk is ridiculously small, if you are using Win9X system, it is still said in the past, but if it is a system of more than 2K, it is far from enough.

pagefile is virtual memory, how to set it: right-click "My Computer" - Properties - Advanced - click the "Settings" button in the "Performance" area, and select the "Advanced" tab in the "Performance Options" window that appears to open its dialog box.

In this dialog box, you can see the area about virtual memory, click the "Change" button to enter the "Virtual Memory" setting window. Select a partition with a large free capacity, check the box before "Custom size", fill in the specific values in the "Initial size" and "Maximum" columns, then click the "Set OK" button, and finally restart the computer to make the virtual memory settings take effect.

In addition, it is recommended to use partitioning software to expand the C drive, use PowerQuest Partion partitioning software, first convert the D drive into the main partition, and then merge the C drive and the D drive, if you find it difficult, you can back up the data and repartition the system, your C drive is too small, XP also needs at least 10 G, in short, it is a matter of time before you change the system.

Virtual memory takes up space, do you see your virtual memory set in the C drive?

The Windows operating system in a computer usually sets up something called virtual memory, which is used to dynamically manage the runtime exchange files. In order to provide more memory capacity than the actual physical memory for use, the Windows operating system takes up a portion of the space on the hard disk as virtual memory. When the CPU asks for it, it reads the data in memory first.

When the memory capacity is insufficient, Windows writes the data that needs to be stored temporarily to the hard disk. So it usually takes up space on your hard drive, and you can open all your hidden files and you can see a file called "pagefile", which is probably the two gigabytes you said you don't have.