The first method:
Delete C: \ Windows \ Software Distribution Delete the contents under the data storage folder and the contents under the download folder.
The contents of these two folders are all about the updated temporary data files, and the problem of occupying space is generally related to the above files, because every update of the system will keep the files in the above folders.
The second method:
1. Open this pc in turn: C: \ Windows \ System32 \ DriverStore \ File Repository.
In the upper right corner, search for input. Inf, and find the deletion at the beginning of ati and nv (A card users delete N, N card users delete A), mdm, prn, and (the entries at the beginning of prn are all printer drivers, and users who don't need a printer can delete them).
It should be noted that: prnms00 1 INF/prnoc00 1。 INF/prnms002。 INF is not a printer driver. Do not delete them.
2. Open the installation downloaded by C: \ Windows \. Some programs, such as Dreamweaver, extract the installation files into this folder when installing. Can be safely deleted, ranging from tens of meters to hundreds of meters;
3.C:\Windows\Help(66.7M) help documents, all deleted;
4. Open the C: \Windows\IME\IMESC5 Microsoft Pinyin Input Method to delete it, C: \ Windows \ IMEP 10 Japanese Input Method (37.8M) to delete it, C:\ Windows \ IME \ imerk8 Korean Input Method (2.86M) to delete it, C:\.
5.C:\windows\Installer installed programs that need to be uninstalled and modified. If deleted, there will be problems in uninstalling and modifying some programs. Delete programs you don't use.
6.C:\Windows\winsxs\Backup (backup file) can be deleted.
Windows folder is the storage folder for system files and software installation files, so it will carry a lot of junk files. If it is not cleaned for a long time, it will cause the computer to get stuck.