Remove Windows 7 taskbar thumbnails

Solution 1:

You may try this:

http://www.nextofwindows.com/customizing-taskbar-thumbnail-with-taskbar-thumbnail-tuner-in-windows-7-and-8/

It should work.

Solution 2:

If nothing else helps 7+ Taskbar Tweaker will for sure:

You'll need to keep it running, but it's quite a light-weight app and a portable installation is possible.

Solution 3:

Snip from reference below (Edit: THIS APPEARS TO ONLY WORK FOR Vista): How to Enable or Disable Taskbar Thumbnail Preview in Windows 7

1. Click on Start button and type GPEdit.msc in Instant Search text box, then hit Enter.
2. Navigate to User Configuration -> Administrative Templates -> Start Menu and Taskbar in left pane of Local Group Policy Editor.
3. Locate and double click on Turn off taskbar thumbnails in right pane of Local Group Policy editor.
4. Select Enabled radion button.
5. Click OK to make the change effective.
6. Logoff and logon again or restart computer if needed.

Reference here

Edit: For Windows 7:

1. Backup registry
2. Win + R -> regedit
3. Navigate to: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Taskband
4. Right Click Taskband folder -> New -> DWORD 32-bit value
5. Name the new DWORD MaxThumbSizePx
6. Right click the new DWORD -> Modify -> enter "1"
7. Reboot

Win7 Reference

Solution 4:

The best solution I have found is to go into this registry key:

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

Then create a new DWORD value called ExtendedUIHoverTime with a value of 20000. That's supposed to cause a 20 second delay before the preview pops up, but for me it stopped it from happening entirely.

Source: answers.microsoft.com