This tutorial will show you how to change the border of thumbnail previews for image, theme, and video files for your account or all users in Windows 10 and Windows 11.
Thumbnail previews of files will show in File Explorer when you have either a medium icons, large icons, or extra large icons folder layout view selected.
You can change the border of thumbnail previews to have no border, a shadow border, or video reel border.
Contents
- Option One: Change Border of Thumbnail Previews for Image Files for Current User
- Option Two: Change Border of Thumbnail Previews for Theme Files for Current User
- Option Three: Change Border of Thumbnail Previews for Video Files for Current User
- Option Four: Change Border of Thumbnail Previews for Image Files for All Users
- Option Five: Change Border of Thumbnail Previews for Theme Files for All Users
- Option Six: Change Border of Thumbnail Previews for Video Files for All Users
EXAMPLE: Default borders for thumbnail previews
1 Do step 2 (none), step 3 (shadow), or step 4 (video reel) below for which border you want.
2. No Border Thumbnail Previews for Image Files for Current User
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Image_files_no_border_for_current_user.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\SystemFileAssociations\image]
"Treatment"=dword:00000000 3. Shadow Border Thumbnail Previews for Image Files for Current User
This is the default setting
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Image_files_shadow_border_for_current_user.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\SystemFileAssociations\image]
"Treatment"=dword:00000002 4. Video Reel Border Thumbnail Previews for Image Files for Current User
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Image_files_video_reel_border_for_current_user.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\SystemFileAssociations\image]
"Treatment"=dword:000000035 Save the REG file to your desktop.
6 If you have Smart App Control turned on, you will need to unblock the downloaded REG file.
7 Double click/tap on the downloaded REG file to merge it.
8 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.
9 Either restart explorer process, sign out and sign in, or restart the computer to apply.
10 You can now delete the downloaded REG file if you like.
1 Do step 2 (none), step 3 (shadow), or step 4 (video reel) below for which border you want.
2. No Border Thumbnail Previews for Theme Files for Current User
This is the default setting
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Theme_files_no_border_for_current_user.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\themefile]
"Treatment"=dword:00000000 3. Shadow Border Thumbnail Previews for Theme Files for Current User
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Theme_files_shadow_border_for_current_user.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\themefile]
"Treatment"=dword:00000002 4. Video Reel Border Thumbnail Previews for Theme Files for Current User
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Theme_files_video_reel_border_for_current_user.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\themefile]
"Treatment"=dword:000000035 Save the REG file to your desktop.
6 If you have Smart App Control turned on, you will need to unblock the downloaded REG file.
7 Double click/tap on the downloaded REG file to merge it.
8 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.
9 Either restart explorer process, sign out and sign in, or restart the computer to apply.
10 You can now delete the downloaded REG file if you like.
1 Do step 2 (none), step 3 (shadow), or step 4 (video reel) below for which border you want.
2. No Border Thumbnail Previews for Video Files for Current User
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Video_files_no_border_for_current_user.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\SystemFileAssociations\video]
"Treatment"=dword:00000000 3. Shadow Border Thumbnail Previews for Video Files for Current User
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Video_files_shadow_border_for_current_user.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\SystemFileAssociations\video]
"Treatment"=dword:00000002 4. Video Reel Border Thumbnail Previews for Video Files for Current User
This is the default setting
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Video_files_video_reel_border_for_current_user.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Classes\SystemFileAssociations\video]
"Treatment"=dword:000000035 Save the REG file to your desktop.
6 If you have Smart App Control turned on, you will need to unblock the downloaded REG file.
7 Double click/tap on the downloaded REG file to merge it.
8 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.
9 Either restart explorer process, sign out and sign in, or restart the computer to apply.
10 You can now delete the downloaded REG file if you like.
You must be signed in as an administrator to use this option.
1 Do step 2 (none), step 3 (shadow), or step 4 (video reel) below for which border you want.
2. No Border Thumbnail Previews for Image Files for All Users
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Image_files_no_border_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\SystemFileAssociations\image]
"Treatment"=dword:00000000 3. Shadow Border Thumbnail Previews for Image Files for All Users
This is the default setting
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Image_files_shadow_border_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\SystemFileAssociations\image]
"Treatment"=dword:00000002 4. Video Reel Border Thumbnail Previews for Image Files for All Users
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Image_files_video_reel_border_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\SystemFileAssociations\image]
"Treatment"=dword:000000035 Save the REG file to your desktop.
6 If you have Smart App Control turned on, you will need to unblock the downloaded REG file.
7 Double click/tap on the downloaded REG file to merge it.
8 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.
9 Either restart explorer process, sign out and sign in, or restart the computer to apply.
10 You can now delete the downloaded REG file if you like.
You must be signed in as an administrator to use this option.
1 Do step 2 (none), step 3 (shadow), or step 4 (video reel) below for which border you want.
2. No Border Thumbnail Previews for Theme Files for All Users
This is the default setting
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Theme_files_no_border_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\themefile]
"Treatment"=dword:00000000 3. Shadow Border Thumbnail Previews for Theme Files for All Users
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Theme_files_shadow_border_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\themefile]
"Treatment"=dword:00000002 4. Video Reel Border Thumbnail Previews for Theme Files for All Users
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Theme_files_video_reel_border_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\themefile]
"Treatment"=dword:000000035 Save the REG file to your desktop.
6 If you have Smart App Control turned on, you will need to unblock the downloaded REG file.
7 Double click/tap on the downloaded REG file to merge it.
8 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.
9 Either restart explorer process, sign out and sign in, or restart the computer to apply.
10 You can now delete the downloaded REG file if you like.
You must be signed in as an administrator to use this option.
1 Do step 2 (none), step 3 (shadow), or step 4 (video reel) below for which border you want.
2. No Border Thumbnail Previews for Video Files for All Users
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Video_files_no_border_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\SystemFileAssociations\video]
"Treatment"=dword:00000000 3. Shadow Border Thumbnail Previews for Video Files for All Users
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Video_files_shadow_border_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\SystemFileAssociations\video]
"Treatment"=dword:00000002 4. Video Reel Border Thumbnail Previews for Video Files for All Users
This is the default setting
A) Click/tap on the Download button below to download the file below, and go to step 5 below.
Video_files_video_reel_border_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\SystemFileAssociations\video]
"Treatment"=dword:000000035 Save the REG file to your desktop.
6 If you have Smart App Control turned on, you will need to unblock the downloaded REG file.
7 Double click/tap on the downloaded REG file to merge it.
8 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.
9 Either restart explorer process, sign out and sign in, or restart the computer to apply.
10 You can now delete the downloaded REG file if you like.
That's it,
Shawn Brink
Last edited:
