Viewing thumbnail representations of your images and selected files in Windows is nothing new, but are you aware that you can change the thumbnail preview border? This hack works with Windows 10 and all the way back to Windows XP.
This is a registry hack and requires knowledge of editing the Windows Registry. Read this article to familiarize yourself with the Registry before continuing.
Thumbnail Preview Border Styles
With this simple hack you can change between 3 different thumbnail preview border styles. Below are the available border settings as per Windows 10. Keep in mind the the values produces different results in different Windows versions.
- No border (0, 4)
- Shadow border (1, 2)
- Filmstrip border (3)
How to change Thumbnail Preview Border styles.
As previously mentioned; to do this, we need to edit the Windows Registry. On your keyboard, hold down the Windows key and then press R (Windows+R). This will open the Run dialog. In the Open textbox, type
regedit and press Enter or click on the OK button. This will open the Registry Editor.
In the Registry Editor, navigate to the
HKEY_CLASSES_ROOT\SystemFileAssociations\image key. In the right panel, right-click on
Treatment and select Modify. Change the hexadecimal value from its default (2) to 3 and click OK to change the Thumbnail Preview Border to the filmstrip style. Consult the list at the beginning of this article for more results.
Reboot your computer and open a folder with images in it to see your new Thumbnail Preview Border style. Play around with the values to find your optimal setting. I prefer the default (2).
Editing the Registry using a reg file
An easier way to edit the Registry is by using a .reg file. Download Notepad3, open it and start with a blank text file. Enter the code below, changing the
2 to your desired setting. Finally, save it with a .reg extension.
Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\SystemFileAssociations\image] "Treatment"=dword:00000002
Now, double-click on your newly created .reg file and answer Yes to import it. Remember to reboot your computer for the setting to take effect.
Hope this article is somewhat useful. Personally, I have no need to change the Thumbnail Preview Border style, but that’s just me.