Taskbar thumbnail preview disappear too quickly to select

Hello Don,

Welcome to Microsoft Community Forum.

As per the description, I understand that taskbar thumbnails preview disappear too quickly to select. You have already tried some other suggested troubleshooting steps like taking out battery and restarting the computer but that did not fix the problem.

I would appreciate if you can provide us the following information to help us understand the issue better.

• Were there any significant software or hardware changes made prior to this issue?

Let’s try to change taskbar Thumbnail Live Preview Delay Time in Registry and check if that solves the problem.

Registry disclaimer

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 and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: http://support.microsoft.com/kb/322756/en-us              

Follow the steps below to change Taskbar thumbnail live preview delay time or set it to default.

1. Press the Windows + R keys to open the Run dialog, type regedit, and press Enter.
   
   
2. In regedit, go to:
   HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced.
   
   
3. In the right pane of Advanced, right click on the empty space, and click on New and DWORD (32-bit) Value. Type ThumbnailLivePreviewHoverTime and press enter.
   
   NOTE: If you already have the ThumbnailLivePreviewHoverTime DWORD, then skip this step.
   
   
4. In the right pane of Advanced, double click/tap on ThumbnailLivePreviewHoverTime to modify it.
   
   
5. Select (dot) Decimal, type in how many milliseconds (1000 milliseconds = 1 second) you want the delay time to be, and click/tap on OK.
   
   NOTE: 1000milliseconds may be a good delay time, but adjust the delay time to meet your needs though.
   
   
6. Close Regedit.
   
   
7. Log off and log on, or restart the computer to apply changes and check.

To restore the default taskbar thumbnail live preview delay time:

1. In the right pane, right click on ThumbnailLivePreviewHoverTime,and click/tap on Delete.
   
   
2. Click/tap on Yes to confirm.
   
3. Close regedit.
   
   
4. Log off and log on, or restart the computer to apply the changes.

Hope this works. Please let us know the results. Feel free to write us back for any further assistance, we’ll be glad to assist you.