Tips for reducing disk space usage in Windows 7

Recently, Windows Drive C has been reduced, and 40 Gb drive C has been fully eaten. I thought it was a Trojan, and I still couldn't find any more files, the size of each folder is much smaller than the space occupied by drive C (because some folders are restricted by permissions and cannot be retrieved ). Finally, I thought about the index created by win7 to increase the search speed. Therefore, the "Index option" is found in the control panel, for example:

You can click "modify" to reduce the folder to be indexed (all blame me for being too greedy at the time, so I index all the root directories on the disk, and the index file reaches 20 GB ), windows official recommendation is that you only need to create an index in a folder that is frequently searched. Do not installProgramFolder to create an index. After the modification is complete, don't forget to click "advanced" and select "re-index" in it, for example:

Without re-indexing, win7 will not release the space occupied by the original index files (this does not seem very good, it should be the reason for the increasing index files ), however, the process of re-indexing is slow, so you don't have to worry about it. You can close the window and continue to do other things. In addition, you can change the location where the index file is stored. The default value is c: \ programdata \ microsoft. You can first check the space occupied by your index file.

Haha, it turns out that the biggest killer of win7 disk space is here. I 've been looking for you for a long time ~