Windows 10/11 taskbar thumbnail disappears? Don’t panic! This article provides a variety of solutions to help you restore the taskbar thumbnail preview function.

Taskbar thumbnail disappears problem

Windows thumbnails are miniature representations of pages or icons, which facilitate quick preview and recognition of pages, pictures or software. But thumbnails don't always work properly. Many users encounter problems that Windows 10 thumbnails do not display, such as image thumbnails do not display, taskbar thumbnails do not display, OneDrive thumbnails do not display, etc.

This article focuses on solving the problem that the taskbar thumbnail is not displayed, that is, when the mouse hovers over the taskbar icon, you cannot see the small window that opens the program. Please try the following effective methods:

How to solve the problem that the taskbar thumbnail is not displayed

Method 1: Restart File Explorer

File Explorer is not only used to access and manage files, but also helps render many user interface projects on the screen, such as taskbars and desktops. If the taskbar thumbnail is not displayed, try restarting File Explorer.

First, right-click on the Windows logo button and select Task Manager .

Second, in the new window, select Windows Explorer and click the Restart button.

Method 2: Make sure the taskbar thumbnail preview is enabled

If the taskbar preview feature is not enabled, the taskbar thumbnail will not be displayed. To ensure that the preview is enabled, follow these steps:

Step 1. Open Windows Settings from the Start menu. If Windows settings are missing from the Start menu, right-click the Windows logo button and click Settings .

Step 2. Select the system .

Step 3. Go to the About tab and click Advanced System Settings in the right panel.

Step 4. In the new window, under the Advanced tab, click the Settings button under the Performance section.

Step 5. Under the Visual Effects tab, make sure the Save taskbar thumbnail preview and display thumbnails instead of icon options are selected.

Step 6. Click Apply and then click OK to take effect.

If this method does not work, try the next method.

Method 3: Adjust the registry

If the registry value is set incorrectly, you may also encounter the problem of "taskbar thumbnail not displayed". To resolve this issue, try modifying the registry.

Step 1. Right-click the Start button and select Run . Type regedit in the input box and click OK .

Step 2. Select the Yes button in the User Account Control window.

Step 3. In the Registry Editor, navigate to the following location:

Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced

In the right panel, check if there is a key named DisablePreviewWindow . If it exists, right-click DisablePreviewWindow and select Delete .

Step 4. Next, navigate to the following location:

Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Taskband

In the right panel, locate and double-click the NumThumbnails key. In the new window, select the hexadecimal cardinality, type 10 under Numerical Data , and then click the OK button.

Step 5. Restart the computer and check if the taskbar thumbnail has been restored.

Method 4: Configure group policy

In addition to the registry, you can also configure Windows settings by modifying Group Policy. How to enable taskbar thumbnails using the local group policy editor? See the following details:

Step 1. Type Edit Group Policy in the Windows Search box, and then click it from the Best Match Results.

Step 2. In the left tree structure, navigate to User Configuration > Administrative Templates > Start Menu and Taskbar . In the right panel, scroll down to double-click to close the taskbar thumbnail .

Step 3. Next, select the option Not configured or disabled . After that, click Apply > OK .

Summarize

In summary, the "Taskbar Thumbnails Not Shown" issue can be resolved by restarting Windows Explorer, changing taskbar settings, modifying the registry, and configuring group policies.

Again, it is recommended to use backup software to back up data or the entire system before editing or deleting the registry to protect computer operations and data security.

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