Usually after installing Windows 7, the following files are mainly in the C drive, which is also the main source of space occupation:
Program Files: Application Folders, the general software will be installed here by default (64 users will have a Program Files (X86) folder, which is the installation directory of 32-bit software in the system, it is normal)
ProgramData: System folder, placed The usage data, settings, etc. of the program are not recommended for deletion.
Windows: The folder that stores the main files of the operating system is very important.
Users: The user's configuration files and data are saved. The "Users" folder in Windows 7 is actually the Documents and Settings file in XP. folder.
hiberfil.sys: The hard disk space file occupied by the system's hibernation function
pagefile.sys: virtual memory page file
There are some other folders:
$RECYCLE.BIN : system folder , that is, "Recycle Bin" is a system volume information file that cannot be deleted. This folder stores the backup information of the system restore.
PerfLogs: Windows log information files, such as disk scan error messages. PerfLogs is automatically generated by the system.
MSOCache: Local installation source for Office
The above is the main file and folder contents in the "C drive", and some other files will appear during the use, for example, there may be alphanumeric characters. Named files, this may be an update temporary folder for Windows Update, which is usually deleted automatically.
Windows folder:
This folder saves the main files of this Windows system, the most occupied folders are system32 and winsxs.
System32: System important folder, contains a large number of users Windows files, mainly Dll, CPL, drivers and some files that support the system.
Winsxs: Winsxs is a very important folder in the Windows directory of VISTA/Windows 7. There are many important components in this folder, and the version is very complicated. In order to ensure the normal operation of Windows, the files inside can not be deleted. of.
User folder:
This folder will include the data, program content, and documents, music, etc. during the user's use. After entering the user folder, the folder named by the user name will be found. See the desktop, my music, my pictures, my videos, favorites, my documents, music, AppData, Downloads and more.
Desktop: will save all the content on the current user's desktop, many friends are used to putting files on the desktop, these are also occupying C space! My music, my pictures, my video: As the name suggests, these contents are by default Will be saved here, of course, many friends are placed in separate places. In addition, one thing to note is that content such as apps downloaded using itunes will be placed in my music folder by default, and will also take up space on the C drive.
Favorites: Contains the favorites file in IE browser
Downloads: IE and some browsers or other programs download some content by default here, it will also occupy some "C disk" space.
My document: It is my document, which saves a lot of program log files. For example, the data files of commonly used folders such as Outlook, QQ, MSN and so on will be saved here.
AppData: The data storage of the program, that is, the Application Data in the Windows system, the user-defined settings in the installation software, the temporary folder, the quick startup folder, etc.
We introduced the "C disk" In the end, what are the contents of the content, let's look at how to make the larger and larger "C disk" rd.
1. Clean up temporary files: You can free up disk space and make your computer run faster by using the system's own disk cleanup. This program deletes temporary files, emptys the recycle bin, and deletes various system files and other items that are no longer needed. You can enter "“Disk Cleanup" in the Start menu search box to enter, select the partition to be cleaned, select the file type to be deleted and then OK to clean it up. (Other third-party software also includes cleaning functions, such as Ccleaner software, but third-party software may have certain risks, please pay attention when using)
2. Delete useless software: In fact, some friends will ask, I installed A lot of software is not in the C drive, but why is the C drive space still less and less? In fact, although the software installation is not in the C drive, but the software generated data, the user's personal use of custom data, etc. are stored in the C drive, For example, ProgramData, AppData, etc., these software will still occupy some space. It is recommended that you do not install too much software that is not used. One-time use of the software is best after deleting it.
3. Don't have too many desktop files: Although the files are conveniently placed on the desktop, over time, the habit of putting everything on the desktop is established. Although this is very convenient, but it will take up the C disk space, and some friends will even reach a few G or more. So everyone can put the files in other partitions is the best drop, of course, you can also create a folder in other partitions, then shortcut to the desktop, drag the file into it just fine. You can also change the desktop folder location to another location, which we'll cover below.
4. The location of those folders: Desktop, Downloads, My Pictures/Music/Video, etc. in the C drive user folder, the default is on the C drive, but you can manually change the location of these folders. . To get the desktop: Open the C drive - user - corresponding username folder, right click on the desktop folder icon, select Properties, click the "Location" tab, and then click Move to select the folder of the other partition to save the content, other Folders can also be set according to this method (if there is a problem after the transfer, click “ restore defaults & rdquo; you can restore the default settings, click & ldquo; find the target & rdquo; can be located to the corresponding directory)
5. Sleep Why do you also take up space: Some friends will ask, why do I take up space to sleep? First, let's take a look at hibernation. Hibernation actually saves the data in the memory on the hard disk and shuts down the computer. Restore this data to memory for quick start-up. If the "Hibernate" function of Windows is enabled, a file of the same size as the memory will be generated on the system disk, named hiberfil.sys, and this file cannot be transferred to other partitions, so the sleep function will be occupied. The C drive space can be closed by command if it is not used:
Please enter cmd in the search box of the start menu, then right click on the cmd.exe icon and select “Run as administrator”, Enter the following command at the flashing position of the cursor and press Enter to make the command take effect.
powercfg -h off
Then we look at the space of the system disk and we find that there are more than a few G available space.
6. What to do with virtual memory: Virtual memory is a combination of the computer's RAM and the temporary space on the hard disk. When RAM is slow, virtual memory moves data from RAM into a space called a paging file. Moving data in and out of paging files frees up RAM so that the computer can get the job done. Generally speaking, the virtual memory is automatically managed by the system when the system is installed. Of course, we can adjust these manually. In order to reduce the space occupied by the C drive, we can move the paging file to other disks with larger space to save the system. Disk space and reduce disk fragmentation:
(1) Right click on "Computer"; and click <;Properties", in the open page, click on Advanced System Settings on the left, in the open window Click the "Settings" button in the Performance section and find the "Advanced" tab
(2) Click the "Change" button in the "Virtual Memory" window that opens, cancel “ Automatically manage the paging file size of all drives, check the box before, and then select “no paging file", click the “Set” button to make the settings take effect, so the paging file in the system disk is deleted.
(3) Select another disk of the system disk and check the size of the system management. Click the “Set" button and click “OK", and restart the computer according to the prompts to make the settings take effect. This way, the paging file is transferred to another disk.
When our C drive is getting smaller and smaller, don't worry, look at the above methods, which can help save some space.