How to improve the overall performance of Windows7

Computer use of a long time, the system will produce a variety of garbage, some system garbage will encroach on the hard disk space, some garbage, although the space is relatively small to occupy the hard disk, or even negligible, but they will be in the registry to generate a lot of garbage branch or key value, so that the overall performance of

In order to better use the example to explain this problem, first of all, please look at the following screenshot:

Right-click menu screenshot

The image above is a Windows 7 system right-click menu screenshot, the left is the AVI format of the "death came" file of the right menu, right is the RMVB format of the "death came" file of the Mail menu. Compared to a look can be known, the left-right menu list, and this file format associated with the player has two, the right only one.

In Windwos 7, the right menu above shows you how many playlists you have on your system (including those that have been uninstalled since you installed it), which means "open" and how many playlists you have. Now we see just a file format of the right menu, we think about, your system is there are many file formats, there are different programs associated with it? This includes a lot of files that have been uninstalled.

So, where are the right keys to open these files? How can we clean it? Let's take a look at the format of AVI file as an example to share the origin of the problem.

Run the Windows 7 registry and navigate to Hkey_current_ Usersoftwaremicrosoftwindowscurrentversionexplorerfileexts.aviopenwithlist, in the right-hand window, you can see which programs are associated with the current AVI format.

Programs associated with AVI format files

From the diagram can be seen, the author of the system in the AVI format of the documents are thunder to see, Storm Audio and video and WMP Association. If I want to remove one of these "open mode", just delete the corresponding key value.

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In these cases, how much of the right key file is opened directly affects the size of the Windows 7 Registry volume, and the size of the registry file directly affects the overall performance of the system. The author lists, just a file format, for other more redundant key values, users can expand, and then one mountain.