This tweak can turn-off the new Sidebar feature of desktop.
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Turn OFF Sidebar.reg
The '.reg' file will turn off Sidebar.
Turn ON Sidebar (Default).reg
The '.reg' file will turn on Sidebar.
Registry Entry Details:
Apply registry settings according below given steps of screenshots with related changes.
Windows Sidebar with gadgets are removed from the desktop.
Windows Sidebar with gadgets are displayed by default.
First, click the 'Start' button, and select 'Run'. In the resulting dialog box, type 'regedit'.
Second, go to [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\] and create a new key as 'Windows'.
Third, create a subkey 'Sidebar' under the key 'Windows'.
Now, create a DWORD value 'TurnOffSidebar' under the subkey 'Sidebar'.
Right click on the DWORD value 'TurnOffSidebar' under the subkey 'Sidebar' and select 'Modify'.
Finally set the value data as '1' to turn off Windows Sidebar and click 'OK'.
Other Related Tweaks
Showing Windows Version on the Desktop (For Windows 98/Me).
Category : Display > Desktop
Enabling this option will show the Version information of Windows on the desktop and disabling the option will hide this information from desktop.
Do not save changed icon position on desktop (For All Users)
Users can change the positions of icons and place them anywhere on the desktop. Windows saves such settings even when the user logs off or restarts the system. This setting can let you disable such feature.
Remove “Active Desktop” item from Settings in the Start menu (For Current User in Win 98/Me).
This setting enables you to remove the menu item “Active Desktop” from Settings in the Start menu.
Remove “Active Desktop” item from Settings in the Start menu (For All Users in Win 98/Me).
Prevent changes to “Active Desktop” settings.
This setting removes the options from Desktop, where you can make changes to the “Active Desktop” settings.