How to Change Space Size Between Taskbar Thumbnail Previews in Windows 7 and Windows 8

   Information

This will show you how to change the space size between the taskbar thumbnail previews of a icon on the taskbar with multiple windows opened of it in Windows 7 and Windows 8. You will not be able to have a smaller space between the taskbar thumbnail previews than the default size.

This will only affect the current user that this is applied in.

EXAMPLE: Taskbar Thumbnail Previews Default and Changed Space Between Size
NOTE: This is an example thumbnail previews of the Internet Explorer icon and Notepad with multiple tabs and windows opened set to 40 pixels.

OPTION ONE

Change Space Between Taskbar Thumbnail Previews using REG File

NOTE: If you would like to use a custom size of your own, then you will need to do OPTION TWO below to make the changes.

1. To Set the Space Between Taskbar Thumbnail Previews to 40 Pixels

A) Click on the download button below to download the
Set_ThumbSpacingXPx_40.reg file.

Download

B) Go to step 3.

2. To Undo the Space Between Taskbar Thumbnail Previews Changes

A) Click on the download button below to download the
Undo_ThumbSpacingXPx_Changes.reg file.

Download

3. Save the .reg file to your desktop.

4. Double click/tap on the downloaded .reg file to merge it.

5. If prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

6. Log off and log on, or restart the computer to apply the changes.

7. When done, you can delete the downloaded .reg file(s) if you like.

OPTION TWO

Change Space Between Taskbar Thumbnail Previews in Registry Editor

1. Press the Windows + R keys to open the Run dialog, type regedit, and click/tap on OK.

2. In regedit, go to: (see screenshot below)

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Taskband

3. To Set the Space Between Taskbar Thumbnail Previews

A) In the right pane of Taskband, right click on a empty space and click on New and DWORD (32-bit) Value. (see screenshot below)

B) Type ThumbSpacingXPx and press enter, then right click on ThumbSpacingXPx and click on Modify. (see screenshot below)

C) Select (dot) Decimal, then type in how many pixels (ex: 40) you want the space between size to be and click on OK. (see screenshot below)
NOTE: Increase (larger space between) or decrease (smaller space between) the pixel number to adjust the size to how you would like it.

D) Go to step 5.

4. To Undo the Space Between Taskbar Thumbnail Previews Changes

A) In the right pane of Taskband, select and right click on ThumbSpacingXPx and click on Delete. (see screenshot below)

B) Click on Yes to approve deletion. (see screenshot below)

5. Close regedit.

6. Log off and log on, or restart the computer to apply the changes.

That's it,
Shawn

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