How the Win7 system determines whether C disk files can be deleted

As we all know, after a long time, the computer will become more and more cards, the main reason is that the WINDOWS7 system C disk storage a large number of files occupy the memory, want to speed up the system running speed, we can delete the C disk files. C disk contains important documents, accidentally delete errors can cause system crashes, then how do we know which files are useless? In response to this problem, and small set to learn how to determine which files can be deleted.

Step One: We first turn off the Win7 system hibernation function, can release more than 3G space OH

"Run as Administrator, all programs → attachments → command Prompt", right-click to select "Run as Administrator", and manually enter "Powercfg-h off" to turn off the Win7 system hibernate function by entering the command prompt.

Step two: Turn off system protection

Computer right-key properties-Advanced management settings-system protection.

Step Three: Transfer virtual memory

Right-key properties of the computer-Advanced management settings-advanced-performance-settings-advanced-change.

Step four: Transfer "User's Files"

Desktop double-click the Administrator (User folders) folder, where you recommend the transfer of 4 system Folders "desktop, Favorites, my desktop, My Documents", the right key to transfer the item properties-location X:usersadministrator can be.

Step five, delete the document does not delete the function, the simplification optimization system does not simplify the optimization performance

1.c:windowswebwall*** (Windows self-wallpaper) Referral transfer

2.c:windowssystem32driverstorefilerepository under

Search input Ati*.inf (14.6M) Nv*.inf (94.9M) (a card users delete N, n card users delete a)

Search input Mdm*.inf (21.6M) Now there's no one to erase.

Search input Prn*.inf (781M) prn The beginning of all is the printer driver, I believe most people do not use. There is a printer, buy the time will also have a drive, delete it.

Note: Prnms001.inf/prnoc001.inf/prnms002.inf these three are not printer-driven and are recommended for retention.

3.c:boot (13.3M) This inside is a different language Windows boot interface, except ZH-CN can be deleted.

4.c:perflogssystemdiagnostics (9.39M) This is the test record file storage place after the system test, delete.

5.c:windowsdownloaded Installations Some programs (Dreamweaver ...) The installation files will be unpacked to this folder when installed. Can be safely removed, ranging from dozens of m to hundreds of M.

6.c:windowshelp (66.7M) all clicks.

7. C:windowsimeimesc5 Microsoft Pinyin Input Method (74.5M) may stay.

C:WINDOWSIMEIMEJP10 Japanese Input Method (37.8M) deleted.

C:WINDOWSIMEIMEKR8 Korean text Input method (2.86M) deleted.

C:WINDOWSIMEIMETC10 in the multiplication of input method (21.6M) deleted.

8. C:windowsinstaller has installed the program's uninstall changes the necessary procedure, if you delete, some programs uninstall and the modification will have the question.

9.c:windowswinsxs This cannot be deleted, but can be compressed, compressed after the size of 2.48G. Save space near 1G.

10.c:windowswinsxsbackup (backup file, Occupy 354MB); Remove the rest assured that it cannot be used.

11.c:programdata Some program installation will put some files to this side, see need to delete, inside the installation file exe, MSI, can be deleted, but some are the software runtime required files, can not be deleted.

The friends who need to release the C disk memory will be able to delete the list to delete the file by using the above method. We must not delete the files, it is important to make sure that it is removable, otherwise it will easily lead to other programs can not operate.

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