Preview Pane is Blank for Every File Type Except Images

We’ve seen the “No preview available” situations before, caused by the incorrect or missing preview handler registration for a file type. Here is a similar problem: the preview pane is empty, showing just the white space for all file types except images.

preview pane blank white all file types

However, the image file types may preview correctly.

preview pane blank white all file types

The above issue happens due to a missing Preview Handler Surrogate Host registration.

Solution

To resolve the issue, download prevhost.reg and run it.



INFO: Contents of the REG file

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\AppID\{6d2b5079-2f0b-48dd-ab7f-97cec514d30b}]
@="Preview Handler Surrogate Host"
"DllSurrogate"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,\
00,74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,\
70,00,72,00,65,00,76,00,68,00,6f,00,73,00,74,00,2e,00,65,00,78,00,65,00,00,\
00

(The above fix applies to all versions of Windows 10 and 11. Last tested in 22H2.)

Also, check out the other articles on Preview handlers and thumbnails in Windows.

I hope that helps. Let’s know your comments.


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Ramesh Srinivasan is passionate about Microsoft technologies and he has been a consecutive ten-time recipient of the Microsoft Most Valuable Professional award in the Windows Shell/Desktop Experience category, from 2003 to 2012. He loves to troubleshoot and write about Windows. Ramesh founded Winhelponline.com in 2005.

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