How to Resize Taskbar Thumbnail Preview on Windows 10

How to Resize Windows 10 Taskbar Thumbnail Preview

Windows 10 have a thumbnail preview every time you hover the pointer above a running program on Taskbar. The default size of the thumbnail is about 200 pixels. However, you can modify the number.

In the following guide, you will learn how to resize Taskbar thumbnail preview on Windows 10 (and may also Windows 8 and Windows 7).

1. Find and run regedit via Start Menu.

How to Resize Windows 10 Taskbar Thumbnail Preview

2. Copy and paste the following directory into the address bar, then press Enter.

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Taskband
How to Resize Windows 10 Taskbar Thumbnail Preview

3. Right-click on the blank area of the right panel, hover to New and select DWORD (32-bit) Value.

How to Resize Windows 10 Taskbar Thumbnail Preview

4. Rename the new key to MinThumbSizePx and press Enter to confirm.

How to Resize Windows 10 Taskbar Thumbnail Preview

5. Now, right-click on the MinThumbSizePx and select Modify…

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How to Resize Windows 10 Taskbar Thumbnail Preview

6. Enter the desired thumbnail resolution (in pixel) on the Value data column. Then, hit OK.

How to Resize Windows 10 Taskbar Thumbnail Preview

7. Restart the computer to take the effect.

BEFORE:

How to Resize Windows 10 Taskbar Thumbnail Preview

AFTER:

How to Resize Windows 10 Taskbar Thumbnail Preview

It also still works perfectly in multiple windows configuration.

How to Resize Windows 10 Taskbar Thumbnail Preview

If you changed your mind, you can always revert to default by deleting MinThumbSizePx, and then restart the computer.

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