Windows 10: Windows Explorer thumbnail preview file types

What file types Windows Explorer is capable of showing thumbnail previews of in the latest Windows 10 versions? Today mine is 1809 (17763.195).

I mean all kinds of files: documents, images, videos, etc.—without the need of third-party programs, plug-ins, extensions, etc.

Can someone provide a list or a source where I can find it? TIA.

:)

 

Windows Explorer crashes and thumbnails problem

Hi, I hope you can help me.
Windows Explorer is no longer showing thumbnails on files played by Windows Media Player. I've run cmd and regsvr32 shmedia.dll and regsvr32 shimgvw.dll. That seemed to solve the problem...but it created a different one. Now when I try to open a folder on an external hard drive it crashes. I read in an old 2008 post it was an avi file causing the problem and suggested the run cmd regsvr32 /u shmedia.dll. That solved the opening problem but recreated the thumbnail problem. Any help to achieve both functions would be greatly appreciated. Thank you.

 

"This file can't be previewed" problem in explorer

Hi Deborah,

For us to provide an accurate resolution, kindly elaborate the issue by answering the questions listed below:

• Since when have you been experiencing this issue?
• Were there any changes on your PC before this happened like software or updates installed?

For initial troubleshooting, we suggest that you follow the steps listed below:

• Open File Explorer.
• Access this link
  
  C:\Users\USERNAME\AppData\Local\Microsoft\Windows\Explorer
• Delete all the files.
• After deleting the files kindly try and see if there's a thumbnail preview of your files.

We're looking forward to your response.

 

Preview pane (file explorer) not always working on OneDrive files

Thank you for keeping us posted. We apologize for the delay as we are checking this case thoroughly.

Since the above troubleshooting steps did not work, let us try a different method to fix this.

It's possible that the thumbnail cache becomes corrupted. Resulting your thumbnails to display incorrectly and some files may not show as thumbnail preview, or sometimes preview is not available at all.

Recreate the thumbnail cache using Disk Cleanup

• Open File Explorer.
• On the left pane, click This PC.
• Right-click the C: drive where Windows 10 is installed, and select
  Properties.
• Click the Disk Cleanup button.
• Check the Thumbnails option, and uncheck all the other options.
• Click OK.
• Click Delete Files to confirm and to complete the task.

You may also recreate the thumbnail cache using Command Prompt just in case the above steps did not work.

• Open Start.
• Search for Command Prompt.
• Right-click the result and select Run as administrator.
• Type the following command to stop File Explorer and press Enter:
  • taskkill /f /im explorer.exe
• Type the following command to delete all the thumbnail database files without asking for confirmation and press
  Enter:
  • del /f /s /q /a %LocalAppData%\Microsoft\Windows\Explorer\thumbcache_*.db
• Type the following command to start File Explorer and press Enter:
  • start explorer.exe
• Close Command Prompt to complete the task.

Let us know how things go.