Windows7 OS Cleanup notification area icon

With Win7 for a long time, in the notification area will appear a lot of software records have been unloaded, these useless stuff is really annoying, must be cleaned up, how to do? See the following methods:

　　Liquidation method I:

1, press the "Win+r" key combination, enter "regedit" Open Registry Editor, and then open the following key values:

Hkey_classes_rootlocal settingssoftwaremicrosoftwindowscurrentversiontraynotify

On the right you can see two key values: IconStreams and PastIconsStream, and delete their values.

2, then call the Task Manager to terminate the process "Explorer.exe", and then click "File-New task" in Task Manager,

Enter "Explorer" and return to restart the system process. (or restart the computer).

3, now look at the notification area icon, the expired icon has been successfully cleaned.