Win7 system's taskbar icons are more and more how to do

Many people who use win7 system will find a problem, that is, more and more icons in the win7 taskbar, people can not stand it. I can't put it down in the end. Just like a problem I saw on the Internet: “When the program is locked in the taskbar at the bottom of the win7 screen, I can't unlock it. As a result, I have more and more icons on the taskbar now.”
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The specific picture of the problem:

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Delete these icons to change the registry, so we have to enter the registry editor (start-run-enter regedit)
Navigate to: HKEY_CURRENT_USERSoftwareClassesLocal SettingsSoftwareMicrosoftWindowsCurrentVersionTrayNotify. Delete the “IconStreams” and “PastIconsStream” these two key values, then end the “explorer.exe” process and start the process. Equivalent to restarting your computer.
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When you finish the second part, don't want to have such a situation in the future, remember to do this step.
In Group Policy: User Configuration~Administrative Templates~Start“Menu” and Taskbar~ Do not allow programs to be attached to the taskbar~Select“Disabled”Application OK
The above is about win7 system How to do more and more icons on the taskbar, the above method can easily solve this problem, and can guarantee that this problem will not occur again in the future.