win7 system how to delete unnecessary files

First, we first turn off the sleep function Win7 system, up to the release of 3G multi-space Oh.

<;Run as administrator, all programs → attachments → command prompt”, right-click and select "Run as administrator", enter the command prompt, manually enter "ld"; Powercfg -h off” Turns off the Win7 system sleep function.

Second, turn off system protection

Computer right-click properties--advanced management settings--system protection.

Third, transfer virtual memory

Computer right-click properties--Advanced management settings--Advanced--Performance-Settings-Advanced-Change.

Fourth, transfer "user's file"

Desktop double-click the Administrator folder, here is recommended to transfer 4 system folders & ldquo; desktop, favorites, My desktop, my document & rdquo;, right-click the project property to be transferred -- location X: UsersAdministrator.

Fifth, delete the file without deleting the function, simplify the optimization system and not optimize the 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 delete N, N card user delete A).

Search for input mdm*.inf (21.6M) Things that are no longer used now are deleted.

Search input prn*.inf (781M) The beginning of prn are all printer drivers, I believe most people can't use them. 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.

Summary: It is best not to delete the files related to the system, otherwise it will affect the normal operation of the system and even cause the system to crash.