TaskbarDa (Widgets) registry change is now blocked

12 lb Turkey · Sep 5, 2024

Reposted using a CMD wrapper. Fixed the "0" output.

Code:

<# : batch script
@echo off
powershell -nop ^
"if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator')) { ^
    Start-Process 'cmd' -ArgumentList '/c start /min %~dpnx0' -Verb RunAs ^
} ^
else { ^
    Invoke-Expression ([System.IO.File]::ReadAllText('%~f0')) ^
}"
goto :eof
#>

$MethodDefinition = @'
[DllImport("Shlwapi.dll", CharSet = CharSet.Unicode, ExactSpelling = true, SetLastError = false)]
    public static extern int HashData(
        byte[] pbData,
        int cbData,
        byte[] piet,
        int outputLen);
'@

$Shlwapi = Add-Type -MemberDefinition $MethodDefinition -Name 'Shlwapi' -Namespace 'Win32' -PassThru

$option = 2 # 2 is for off

$machineIdReg = Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\SQMClient\' -Name 'MachineId' -ErrorAction SilentlyContinue
$machineId = '{C283D224-5CAD-4502-95F0-2569E4C85074}' # Fallback Value

if( $machineIdReg) {
    $machineId = $machineIdReg.MachineId
}

$combined = $machineId + '_' + $option.ToString()
$reverse = $combined[($combined.Length-1)..0] -join ''
$bytesIn = [system.Text.Encoding]::Unicode.GetBytes($reverse)
$bytesOut = [byte[]]::new(4)
$Shlwapi::HashData($bytesIn,0x53, $bytesOut, $bytesOut.Count) | Out-Null

$dwordData = [System.BitConverter]::ToUInt32($bytesOut,0)

Copy-Item (Get-Command reg).Source '.\reg1.exe'

Start-Process -NoNewWindow -Wait -FilePath '.\reg1.exe' -ArgumentList "add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Feeds /v ShellFeedsTaskbarViewMode /t REG_DWORD /d $option /f 1>NUL"
Start-Process -NoNewWindow -Wait -FilePath '.\reg1.exe' -ArgumentList "add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Feeds /v EnShellFeedsTaskbarViewMode /t REG_DWORD /d $dwordData /f 1>NUL"

Remove-Item '.\reg1.exe'

RanCorX2 · Mar 26, 2025

sorry to bring this up again, but 23h2 has this prob too. as i was having the issue adding some registry keys in hyper-v vm, but doing as users in this thread said making a copy of reg.exe and renaming to reg1.exe allowed me to import the keys.
also the UCPD service exists on 23h2.

TaskbarDa (Widgets) registry change is now blocked

12 lb Turkey MDL Member

RanCorX2 MDL Expert