This is not a question, this is an answer to a common problem with an easy solution.
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DO NOT delete the registry subkey "Zones" the proper method to restore your gadgets is much simpler.
Here is the proper fix:
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Right-Click Taskbar > Task Manager
Right-Click sidebar.exe > End Process
Start > Run (Windows Key + R)
%LOCALAPPDATA%\Microsoft\Windows Sidebar\
Delete the Settings.ini file in this folder.
(If you do not have extensions showing it will just read "Settings" in the [Name] column with "Configuration settings" in the [Type] column)
Right-Click Desktop > Gadgets
Place your gadgets on your desktop.
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