Win7 How to clean up the registry

first, clean up the registry steps

1, press the keyboard Win+r key combination, bring up the "Run" dialog box, enter "regedit" Press OK to open the registry manager.

2, the Executive menu "edit"-"find" command, enter the content you want to find. For example, I want to find and QQ Pinyin related items, enter the "Qqplayer" (no case), click "Find Next" search results are as follows.

3, all the search results are deleted. Next, perform the menu edit-Find Next command to continue looking for relevant content.

Second, bulk clean up the contents of the registry

1, here I would like to introduce the relevant terminology:

(1), hkey: "Root Key" or "primary key", its icon is somewhat similar to the icon in the folder in Explorer. Windows98 divides the registry into six parts and is called hkey_name, which means a handle to a key.

(2), Key (key): It contains an additional folder and one or more values.

(3), subkey (subkey): The key (subkey) that appears below a key (parent key).

2, the left side of the registry is the key to the registry, where HKEY_CLASSES_ROOT is the system in the file format recorded.

3, according to the name to find the content, directly delete the folder.