Windows 7 taskbar drag right click menu

Method 1: 

You may try the following steps to disable the Taskbar thumbnail preview in Windows 7:

1. Click “Start” and type “gpedit.msc” and hit Enter

2. Navigate to User Configuration, Administrative Templates, and Start Menu and Taskbar in left pan of Group Policy Editor.

3. Locate “Turn off Taskbar Thumbnails” in right pan of Group policy editor and double click.

4. Select “Enabled” and click “Apply” and “OK”.

Method 2: 

If the above method doesn’t help, you may try the below steps:

You can disable the taskbar thumbnail feature (sort of) in Windows 7 using a registry edit. This can be done by setting the taskbar thumbnail preview hover delay to a large value (say 10000 milliseconds or more), so that the preview is not immediately generated when you hover over a taskbar icon. 

1. Click Start, type regedit.exe and press ENTER

2. Navigate to the following location:

   HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced 

3. Create a new DWORD (32-bit) value named ExtendedUIHoverTime 

4. Double-click ExtendedUIHoverTime and click Decimal 

5. To increase the hover delay to 5 seconds, type 5000 . Type 10000 for 10 seconds and so forth…

6. Exit the Registry Editor.

7. Restart your computer.

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up registry, refer the link below:

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