Disabling Taskbar Thumbnails no longer works on 24H2


tbubah said:
Hi, I'm on 11 Pro, V 24H2 build 26100.4061. Admins pushed an update this week, everything in my Taskbar is showing Thumbnails now and I CANNOT get them to go back to text-only Previews.

My HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Taskband\NumThumbnails is still at 0...

I tried going into Group Policy and enabling "Turn off taskbar thumbnails".

Also tried creating a DWORD for ExtendedUIHoverTime in
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced and setting to Decimal 60000 as suggested here.

In my work I constantly have a lot of open emails, Excel spreadsheets, Word docs, File Explorer windows... It is SO annoying to have to move the mouse horizontally to access or close huge Thumbnails, as opposed to vertically-scrolling nice succinct text-only Preview lines.

WHY would Microsoft need to force all users to view Thumbnails of their open programs??!?!?!!?

Please tell me a fix is coming (outside of having to install 3rd party program).
Click to expand...

I have the exact same situation, including the same build number.

And just to note, the hexadecimal / decimal thing in Regedit is just how the UI works. It doesn't matter which one you use so long as you supply the right value -- "60000" in decimal is equivalent to "ea60" in hex.
 

My Computer My Computer

At a glance

Windows 11 23H2 (OS Build 22631.3296)AMD Ryzen 5 3600XHyperX Predator RGB DDR4 3200MHz (32 GB total)NVIDIA GeForce RTX 2070 Super
OS
Windows 11 23H2 (OS Build 22631.3296)
Computer type
PC/Desktop
Manufacturer/Model
Maingear Vybe
CPU
AMD Ryzen 5 3600X
Motherboard
Gigabyte X570 Gaming X
Memory
HyperX Predator RGB DDR4 3200MHz (32 GB total)
Graphics Card(s)
NVIDIA GeForce RTX 2070 Super
Sound Card
RealTek ALC887 (Onboard)
Hard Drives
Seagate FireCuda 520 SSD/NVMe (1 TB)
PSU
EVGA 750W SuperNOVA B2 80+ BRONZE
Cooling
Maingear Epic 240
Keyboard
SteelSeries Apex 3 TKL
Mouse
Razer Viper 8KHz
Internet Speed
1 Gbps
Browser
Brave
Antivirus
Microsoft Defender
Other Info
No third-party security software
Can confirm, doesn't work any more. Did work on build 26100.1435 (original build of the ISO for Win11 LTSC 2024), but after updating to 26100.4202 it stopped working.

Here is what I use to block the taskbar thumbnails.

Code: 
@ECHO OFF

TITLE Disable Thumbnail previews in the Taskbar

ECHO Disabling Thumbnail previews in the Taskbar...

REG.exe ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer" /V TaskbarNoThumbnail /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V DisablePreviewWindow /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V ExtendedUIHoverTime /T REG_DWORD /D 0x9a7ec800 /F >NUL 2>&1
REG.exe ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Taskband" /V NumThumbnails /T REG_DWORD /D 0 /F >NUL 2>&1
REG.exe ADD "HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer" /V TaskbarNoThumbnail /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V DisablePreviewWindow /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V ExtendedUIHoverTime /T REG_DWORD /D 0x9a7ec800 /F >NUL 2>&1
REG.exe ADD "HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Taskband" /V NumThumbnails /T REG_DWORD /D 0 /F >NUL 2>&1

REG.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /V TaskbarNoThumbnail /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V DisablePreviewWindow /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V ExtendedUIHoverTime /T REG_DWORD /D 0x9a7ec800 /F >NUL 2>&1
REG.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Taskband" /V NumThumbnails /T REG_DWORD /D 0 /F >NUL 2>&1
REG.exe ADD "HKCU\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer" /V TaskbarNoThumbnail /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKCU\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V DisablePreviewWindow /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKCU\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V ExtendedUIHoverTime /T REG_DWORD /D 0x9a7ec800 /F >NUL 2>&1
REG.exe ADD "HKCU\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Taskband" /V NumThumbnails /T REG_DWORD /D 0 /F >NUL 2>&1

REG.exe ADD "HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /V TaskbarNoThumbnail /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V DisablePreviewWindow /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V ExtendedUIHoverTime /T REG_DWORD /D 0x9a7ec800 /F >NUL 2>&1
REG.exe ADD "HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Taskband" /V NumThumbnails /T REG_DWORD /D 0 /F >NUL 2>&1
REG.exe ADD "HKU\.DEFAULT\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer" /V TaskbarNoThumbnail /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKU\.DEFAULT\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V DisablePreviewWindow /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKU\.DEFAULT\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V ExtendedUIHoverTime /T REG_DWORD /D 0x9a7ec800 /F >NUL 2>&1
REG.exe ADD "HKU\.DEFAULT\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Taskband" /V NumThumbnails /T REG_DWORD /D 0 /F >NUL 2>&1

REG.exe LOAD "HKU\DEFAULT" "%SystemDrive%\Users\Default\NTUSER.DAT" >NUL 2>&1

REG.exe ADD "HKU\DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /V TaskbarNoThumbnail /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKU\DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V DisablePreviewWindow /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKU\DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V ExtendedUIHoverTime /T REG_DWORD /D 0x9a7ec800 /F >NUL 2>&1
REG.exe ADD "HKU\DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Taskband" /V NumThumbnails /T REG_DWORD /D 0 /F >NUL 2>&1
REG.exe ADD "HKU\DEFAULT\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer" /V TaskbarNoThumbnail /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKU\DEFAULT\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V DisablePreviewWindow /T REG_DWORD /D 1 /F >NUL 2>&1
REG.exe ADD "HKU\DEFAULT\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /V ExtendedUIHoverTime /T REG_DWORD /D 0x9a7ec800 /F >NUL 2>&1
REG.exe ADD "HKU\DEFAULT\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Taskband" /V NumThumbnails /T REG_DWORD /D 0 /F >NUL 2>&1

REG.exe UNLOAD "HKU\DEFAULT" >NUL 2>&1

ECHO Done!
 

My Computer My Computer

At a glance

Windows 10 Enterprise LTSC 2019
OS
Windows 10 Enterprise LTSC 2019
Computer type
PC/Desktop
Manufacturer/Model
Gigabyte GA-Z77M-D3H
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