Thumbnail Generator for Windows 11

[ミறѳѳղղįզվદ彡]

Thumbnail Generator for Windows 11
This application aims to recreate the missing feature of folder thumbnails in Windows 11.
It uses ImageMagick to composite media thumbnails in a folder to create a thumbnail
and generates a desktop.ini file to set it as the thumbnail.

Usage

The usage is simple.


[*=center]Download the application from the Releases (https://github.com/hahagu/WindowsThumbnailGenerator/releases) page
[*=center]Start up Thumbnail Generator.exe
[*=center]Choose a directory
[*=center]Choose whether to generate thumbnails recursively
[*=center](If checked, the application will create thumbnail icons for subfolders as well.)
[*=center]Press start and wait.


The application will automatically generate thumbnails and place them in correct directories.

(https://github.com/hahagu/WindowsThumbnailGenerator#troubleshooting)Troubleshooting
Thumbnails not updating

If thumbnails are not updating, it is most likely the thumbnail cache not being properly updated.
Therefore, you need to reset the thumbnail cache.
To do this, you have to open up the Disk Cleanup utility, check the box for Thumbnails, and start cleaning.
This will effectively delete all folder icon cache, so they will be forced to be updated.

(https://github.com/hahagu/WindowsThumbnailGenerator#folders-containing-special-characters)Folders containing special characters

The desktop.ini file by default, is always made in the native language encoding that your Windows is in.
However, when we are manually writing the desktop.ini file, the encoding is by default, UTF-8.
Therefore, your system needs to support UTF-8.
To enable the UTF-8 support, open Settings > Time & Language > Language & Region > Administrative language settings,
Open the Administrative tab, click on change system locale, and check the box that reads `Beta: Use Unicode UTF-8 for worldwide language support.
After restarting the PC, generate the thumbnails again, and the thumbnails should work.
http://virtualcustoms.net/attachment.php?attachmentid=63022&d=1369463232
https://github.com/hahagu/WindowsThumbnailGenerator (https://github.com/hahagu/WindowsThumbnailGenerator)
http://virtualcustoms.net/attachment.php?attachmentid=48512&d=1318717506

[zbigniew59]

How to restore the previous look - remove the desktop.ini file?
I installed a different system and icons by 7tsp and it shows me changed folders from win11.
These folders are on a different drive.

- 90308

[ミறѳѳղղįզվદ彡]

How to restore the previous look - remove the desktop.ini file?
I installed a different system and icons by 7tsp and it shows me changed folders from win11.
These folders are on a different drive.

- 90308
hello and this is if you upgrade your Windows
for example if you are using Upgrade not a Clean Install from Windows 10 10.0.19044 to Windows 11 10.0.22449
and you set (Keep data and folders)
after using 7tsp on Windows 11 7tsp created a new backup from this build
if you going back on Windows 10 you need to run sfc /scannow
this replace back all of your default system files from Windows 10 to default
run 7tsp as Administrator and click on Restore/Restore all modified system files to Windows default
or run cmd.exe as Administrator
At the command prompt, type the following command, and then press ENTER:
sfc /scannow
90309

[zbigniew59]

I did as you recommended, reverted from a copy of win11, and did as you recommended.
But that didn't help - the folders keep showing the thumbnails.
90315

90316

[zbigniew59]

I did as you recommended, reverted from a copy of win11, and did as you recommended.
But that didn't help - the folders keep showing the thumbnails.
90315

90316


On a win 10 system, the sfc / scannow command fixes the system but does not fix icons


These icons are on a different drive.

90317

[ミறѳѳղղįզվદ彡]

On a win 10 system, the sfc / scannow command fixes the system but does not fix icons


These icons are on a different drive.

90317
then you can try clear your Icon Cache manually
here is tutorial or you can use this little tool Reload Icons GUI
https://neosmart.net/wiki/clear-icons-cache (https://neosmart.net/wiki/clear-icons-cache/#:~:text=Go%20to%20C%3A%5CUsers%5CUser%5CAppData%5CLocal%5C,press%20the%20Shift%20%2B%20Delete%20keys.)
or you can Reset your folder Setting to default or disable thumbnails
90322

[zbigniew59]

Nothing works - I try all your recommendations.
This program broke my whole disk - D: / - on which I collected stuff for many years.
I made the last copy 2 months ago - and during that time I added a lot of stuff to this drive.
So in restoring I will lose a lot of things.


No matter what I do - install a new system, restore from backup - always the same.
So some file that manages this is on disk D: /
WHAT IS THIS FILE - AND WHERE IS IT ON THE DISK?

You wrote - It uses ImageMagick to composite media thumbnails in a folder to create a thumbnailand generates a desktop.ini file to set it as the thumbnail.

Where is this file and how do I delete it?

[cretino]

...
WHAT IS THIS FILE - AND WHERE IS IT ON THE DISK?

You wrote - It uses ImageMagick to composite media thumbnails in a folder to create a thumbnailand generates a desktop.ini file to set it as the thumbnail.

Where is this file and how do I delete it?

easy way
use bootable media (you can make it with win10xpe if you dont have)
go to yor desktop & modify 'desktop.ini'
this is desktop.ini with clean install

90326

[zbigniew59]

Nothing helps.
Only manual icon change helps - but there is a lot of it because there are also subfolders. :sad::tired:

[zbigniew59]

Nothing helps.
Only manual icon change helps - but there is a lot of it because there are also subfolders.
:sad:

[cretino]

Nothing helps.
Only manual icon change helps - but there is a lot of it because there are also subfolders.
:sad:
you are right...
i tested with v3.0.0 with pictures & video folder

90347
but when i clear icon cache nothing change ...
with my bootable xpe i chek the desktop.ini
90348
so i overwrite desktop.ini pictures with

[.ShellClassInfo]LocalizedResourceName=@%SystemRoot%\system32\shell32.dll,-21779
InfoTip=@%SystemRoot%\system32\shell32.dll,-12688
IconResource=%SystemRoot%\system32\imageres.dll,-113
IconFile=%SystemRoot%\system32\shell32.dll
IconIndex=-236
and desktop.ini video with

[.ShellClassInfo]LocalizedResourceName=@%SystemRoot%\system32\shell32.dll,-21791
InfoTip=@%SystemRoot%\system32\shell32.dll,-12690
IconResource=%SystemRoot%\system32\imageres.dll,-189
IconFile=%SystemRoot%\system32\shell32.dll
IconIndex=-238
instead of

[.ShellClassInfo]IconResource=.\thumb.ico,0
IconFile=.\thumb.ico
IconIndex=0
[ViewState]
Mode=
Mode=
Vid=
and everything is normal is normal now ...
it's better to report it to développer

[ミறѳѳղղįզվદ彡]

you not need to change all icons one by one
just take ownership original imageres.dll.mun file in the
C:\Windows\SystemResources directory
C:\Windows\SystemResources\imageres.dll.mun
take ownership unlock this protected system file now you can move original file to your desktop
unzip my backup file and cut and paste my backup to the original directory
restart your system and Reload your Icons Cache
90358

[zbigniew59]

I did as you wrote - but it didn't change anything.

90363

:unhappy: