How does the win7 system judge whether the C disk file can be deleted?

It is well known that after the computer has been used for a long time, it will become more and more cards. The main reason is that the Windows 7 system C disk stores a large number of files occupying the memory and wants to speed up the system. Running speed, we can delete the files in the C drive. The C drive contains important files. If you accidentally delete the error, it will cause the system to crash. How do we know which files are useless? For this problem, and Xiaobian to learn how to determine which files can be deleted.

Step 1: We first turn off the sleep function of Win7 system, and can release more than 3G space.

“Run as administrator, all programs → attachment → command prompt&rdquo ;, right-click and select "Run as administrator", enter the command prompt, manually enter "ldcfg;powercfg -h off"; Turn off the Win7 system sleep function.

Step 2: Turn off system protection

Computer right-click properties--Advanced management settings--System protection.

Step 3: Transfer Virtual Memory

Computer Right-Click Properties--Advanced Management Settings--Advanced--Performance-Settings-Advanced-Change.

Step 4: Transfer “User's File”

Double-click on the “User Folder” folder on the desktop. Here, it is recommended to transfer 4 system folders “Desktop, Favorites, My desktop, my document & rdquo;, right-click the project property to be transferred -- location X: UsersAdministrator.

Step 5: Delete files without deleting functions, simplify optimization system, not simplify performance

1.C: WindowsWebWall*** (Windows comes with wallpaper) recommended transfer

2.C: WindowsSystem32DriverStoreFileRepository

Search input ati*.inf (14.6M) nv*.inf(94.9M) (A card user deletes N, N card user deletes A)

Search Enter mdm*.inf (21.6M) Something that is no longer used now

Search for input prn*.inf (781M) prn All of them are printer drivers, I believe most people can't use them. of. There is a printer, and when you buy it, you will also have a driver and delete it.

Note: prnms001.inf/prnoc001.inf/prnms002.inf These three are not printer drivers and are recommended.

3.C:Boot (13.3M) This is a Windows startup interface for different languages. It can be deleted except zh-CN.

4.C:perflogsSystemDiagnostics (9.39M) This is the storage location of the test record file after the system test, delete.

5.C: WindowsDownloaded Installations There are some programs (Dreamweaver……) that will be installed to extract the installation files into this folder. Can be safely deleted, ranging from tens of M to several hundred M.

6.C:WindowsHelp (66.7M) All 咔嚓.

7. C: WindowsIMEIMESC5 Microsoft Pinyin input method (74.5M) can be left.

C:WindowsIMEIMEJP10 Japanese input method (37.8M) Delete.

C:WindowsIMEimekr8 Korean input method (2.86M) Delete.

C:WindowsIMEIMETC10 Traditional Chinese input method (21.6M) Delete.

8. C: WindowsInstaller The program that is installed when uninstalling the program is modified. If you delete it, some programs will be uninstalled and modified.

9.C: Windowswinsxs This can't be deleted, but it can be compressed. The compressed size is 2.48G. It saves nearly 1G.

10.C: WindowswinsxsBackup (backup file, 354MB); Delete Don't worry, you can't use it.

11.C:ProgramData Some programs will put some files into the installation, see the need to delete, the installation files exe, msi, can be deleted, but some are files required for software operation, can not mess delete.

Friends who need to release the C disk memory will judge according to the above method to delete the list and delete the file. You must not delete files in a random manner. Be sure to delete them. Otherwise, other programs will not work.

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