diff --git a/workload/NuGet.config b/workload/NuGet.config
index 5976aac53..0700f15d7 100644
--- a/workload/NuGet.config
+++ b/workload/NuGet.config
@@ -3,7 +3,6 @@
   <packageSources>
     <clear />
     <!-- ensure only the sources defined below are used -->
-    <add key="tizen-myget" value="https://tizen.myget.org/F/dotnet/api/v3/index.json" protocolVersion="3" />
     <add key="dotnet-public" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json" protocolVersion="3" />
     <add key="dotnet-eng" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json" protocolVersion="3" />
     <add key="dotnet6" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json" />
diff --git a/workload/scripts/README.md b/workload/scripts/README.md
index 86591351a..42bf318a4 100644
--- a/workload/scripts/README.md
+++ b/workload/scripts/README.md
@@ -27,3 +27,39 @@ or
 ```
 curl -sSL https://raw.githubusercontent.com/Samsung/Tizen.NET/main/workload/scripts/workload-install.sh | bash -s -- -v <version> -d <dotnet sdk location>
 ```
+
+## workload-uninstall (Windows only)
+
+This script removes the Tizen workload from the installed .NET SDK, including the HKLM registry entry that `workload-install.ps1` writes on MSI-installed SDKs to make `dotnet workload list` show `tizen`.
+
+### When to use it
+
+On Windows, running `dotnet workload install/restore/update` for other workloads while the Tizen workload is installed can fail with an error like:
+
+```
+Version X.Y.Z of package samsung.tizen.sdk.msi.x64 is not found in NuGet feeds
+```
+
+and cause the entire transaction to roll back, including other workloads installed in the same session. The root cause is that the Tizen workload is currently distributed as raw NuGet packages via an install script rather than signed MSI NuGet packages, but the install script registers a Windows Installer entry so that `dotnet workload list` can see it. The SDK then treats Tizen as an MSI-installed workload and fails when it cannot find the MSI payload.
+
+As a workaround, run `workload-uninstall.ps1` before `dotnet workload` operations for other workloads, then reinstall the Tizen workload with `workload-install.ps1`:
+
+```
+# 1) Uninstall Tizen workload (run PowerShell as Administrator)
+.\workload-uninstall.ps1
+
+# 2) Run your dotnet workload operations
+dotnet workload install maui
+# or dotnet workload restore / update, etc.
+
+# 3) Reinstall the Tizen workload
+.\workload-install.ps1
+```
+
+### Usage
+
+```
+workload-uninstall.ps1 [-d <Dotnet SDK Location>] [-t <Dotnet Version Band Target Folder>]
+```
+
+Must be run with administrator privileges when the .NET SDK is installed under `%ProgramFiles%\dotnet` (the default for MSI-installed SDKs).
diff --git a/workload/scripts/workload-uninstall.ps1 b/workload/scripts/workload-uninstall.ps1
new file mode 100644
index 000000000..e0933c9a9
--- /dev/null
+++ b/workload/scripts/workload-uninstall.ps1
@@ -0,0 +1,223 @@
+#
+# Copyright (c) Samsung Electronics. All rights reserved.
+# Licensed under the MIT license. See LICENSE file in the project root for full license information.
+#
+
+<#
+.SYNOPSIS
+Uninstalls Tizen workload.
+.DESCRIPTION
+Removes the Tizen WorkloadManifest, workload packs, the file-based workload
+marker, and (on MSI-installed .NET SDKs) the HKLM registry entry that
+workload-install.ps1 creates so that 'dotnet workload list' shows 'tizen'.
+
+Use this script before running 'dotnet workload install/restore/update' for
+other workloads to avoid the MSI lookup failure that causes those operations
+to roll back. After you are done, reinstall the Tizen workload with
+workload-install.ps1.
+
+Must be run with administrator privileges when the .NET SDK was installed
+via the Windows MSI (the default location under %ProgramFiles%\dotnet).
+.PARAMETER DotnetInstallDir
+Dotnet SDK location (default: $env:DOTNET_ROOT, or %ProgramFiles%\dotnet).
+.PARAMETER DotnetTargetVersionBand
+Explicit SDK version band to uninstall from (e.g. '8.0.400'). If omitted,
+the script iterates over every installed .NET 6+ SDK and removes the Tizen
+workload from each matching band.
+#>
+
+[cmdletbinding()]
+param(
+    [Alias('d')][string]$DotnetInstallDir="<auto>",
+    [Alias('t')][string]$DotnetTargetVersionBand="<auto>"
+)
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference = "Stop"
+$ProgressPreference = "SilentlyContinue"
+
+$ManifestBaseName = "Samsung.NET.Sdk.Tizen.Manifest"
+
+function Ensure-Writable([string]$TestDir) {
+    if (-Not (Test-Path $TestDir)) { return }
+    Try {
+        [io.file]::OpenWrite($(Join-Path -Path $TestDir -ChildPath ".test-write-access")).Close()
+        Remove-Item -Path $(Join-Path -Path $TestDir -ChildPath ".test-write-access") -Force
+    }
+    Catch [System.UnauthorizedAccessException] {
+        Write-Error "No permission to uninstall from '$TestDir'. Try run with administrator mode."
+    }
+}
+
+function Remove-Pack([string]$Id, [string]$Version, [string]$Kind) {
+    switch ($Kind) {
+        "manifest" {
+            if (Test-Path $TizenManifestDir) {
+                Write-Host "Removing manifest $Id/$Version..."
+                Remove-Item -Path $TizenManifestDir -Recurse -Force
+            }
+        }
+        {($_ -eq "sdk") -or ($_ -eq "framework")} {
+            if ( ($Kind -eq "sdk") -and ($Id -match ".net[0-9]+$")) {
+                $Id = $Id -replace (".net[0-9]+", "")
+            }
+            $TargetDirectory = $(Join-Path -Path $DotnetInstallDir -ChildPath "packs\$Id\$Version")
+            if (Test-Path $TargetDirectory) {
+                Write-Host "Removing pack $Id/$Version..."
+                Remove-Item -Path $TargetDirectory -Recurse -Force
+                # Remove the pack's parent folder if it becomes empty.
+                $ParentDir = Split-Path -Parent $TargetDirectory
+                if ((Test-Path $ParentDir) -and ((Get-ChildItem -Path $ParentDir -Force | Measure-Object).Count -eq 0)) {
+                    Remove-Item -Path $ParentDir -Force
+                }
+            }
+        }
+        "template" {
+            $TargetFileName = "$Id.$Version.nupkg".ToLower()
+            $TargetFile = $(Join-Path -Path $DotnetInstallDir -ChildPath "template-packs\$TargetFileName")
+            if (Test-Path $TargetFile) {
+                Write-Host "Removing template $Id/$Version..."
+                Remove-Item -Path $TargetFile -Force
+            }
+        }
+    }
+}
+
+function Uninstall-TizenWorkload([string]$DotnetVersion)
+{
+    $VersionSplitSymbol = '.'
+    $SplitVersion = $DotnetVersion.Split($VersionSplitSymbol)
+
+    $CurrentDotnetVersion = [Version]"$($SplitVersion[0]).$($SplitVersion[1])"
+    $DotnetVersionBand = $SplitVersion[0] + $VersionSplitSymbol + $SplitVersion[1] + $VersionSplitSymbol + $SplitVersion[2][0] + "00"
+    $ManifestName = "$ManifestBaseName-$DotnetVersionBand"
+
+    # Resolve target band. A locally-scoped copy of the script-level parameter.
+    $TargetBand = $DotnetTargetVersionBand
+    if ($TargetBand -eq "<auto>") {
+        if ($CurrentDotnetVersion -ge "7.0")
+        {
+            $IsPreviewVersion = $DotnetVersion.Contains("-preview") -or $DotnetVersion.Contains("-rc") -or $DotnetVersion.Contains("-alpha")
+            if ($IsPreviewVersion -and ($SplitVersion.Count -ge 4)) {
+                $TargetBand = $DotnetVersionBand + $SplitVersion[2].SubString(3) + $VersionSplitSymbol + $($SplitVersion[3])
+                $ManifestName = "$ManifestBaseName-$TargetBand"
+            }
+            elseif ($DotnetVersion.Contains("-rtm") -and ($SplitVersion.Count -ge 3)) {
+                $TargetBand = $DotnetVersionBand + $SplitVersion[2].SubString(3)
+                $ManifestName = "$ManifestBaseName-$TargetBand"
+            }
+            else {
+                $TargetBand = $DotnetVersionBand
+            }
+        }
+        else {
+            $TargetBand = $DotnetVersionBand
+        }
+    }
+
+    # Locate Tizen workload manifest.
+    $ManifestDir = Join-Path -Path $DotnetInstallDir -ChildPath "sdk-manifests" | Join-Path -ChildPath $TargetBand
+    $TizenManifestDir = Join-Path -Path $ManifestDir -ChildPath "samsung.net.sdk.tizen"
+    $TizenManifestFile = Join-Path -Path $TizenManifestDir -ChildPath "WorkloadManifest.json"
+
+    $Found = $false
+
+    # Remove packs declared by the manifest, then the manifest itself.
+    if (Test-Path $TizenManifestFile) {
+        $Found = $true
+        Ensure-Writable $ManifestDir
+        Try {
+            $ManifestJson = $(Get-Content $TizenManifestFile | ConvertFrom-Json)
+            $InstalledVersion = $ManifestJson.version
+            $ManifestJson.packs.PSObject.Properties | ForEach-Object {
+                Remove-Pack -Id $_.Name -Version $_.Value.version -Kind $_.Value.kind
+            }
+            Remove-Pack -Id $ManifestName -Version $InstalledVersion -Kind "manifest"
+        }
+        Catch {
+            Write-Host "Could not parse manifest at $TizenManifestFile, falling back to directory removal."
+            Write-Host "$_"
+            Remove-Item -Path $TizenManifestDir -Recurse -Force
+        }
+    }
+    elseif (Test-Path $TizenManifestDir) {
+        # Manifest folder exists but WorkloadManifest.json is missing (partial install).
+        $Found = $true
+        Write-Host "Manifest file missing; removing partial manifest directory $TizenManifestDir..."
+        Remove-Item -Path $TizenManifestDir -Recurse -Force
+    }
+
+    # Remove the file-based workload marker (independent of manifest band,
+    # this marker is always under the non-preview band path).
+    $FileBasedMarker = Join-Path -Path $DotnetInstallDir -ChildPath "metadata\workloads\$DotnetVersionBand\InstalledWorkloads\tizen"
+    if (Test-Path $FileBasedMarker) {
+        $Found = $true
+        Write-Host "Removing file-based workload marker..."
+        Remove-Item -Path $FileBasedMarker -Force
+    }
+
+    # Remove HKLM registry entry written by workload-install.ps1 on MSI-installed SDKs.
+    $RegPath = "HKLM:\SOFTWARE\Microsoft\dotnet\InstalledWorkloads\Standalone\x64\$TargetBand\tizen"
+    if (Test-Path $RegPath) {
+        $Found = $true
+        Write-Host "Removing registry entry $RegPath..."
+        Try {
+            Remove-Item -Path $RegPath -Force
+        }
+        Catch [System.UnauthorizedAccessException] {
+            Write-Error "No permission to remove registry entry. Try run with administrator mode."
+        }
+    }
+
+    if (-Not $Found) {
+        Write-Host "Tizen workload not found for band $TargetBand. Nothing to remove."
+    }
+    else {
+        Write-Host "Done uninstalling Tizen workload for band $TargetBand"
+    }
+}
+
+# Resolve dotnet install directory.
+if ($DotnetInstallDir -eq "<auto>") {
+    if ($Env:DOTNET_ROOT -And $(Test-Path "$Env:DOTNET_ROOT")) {
+        $DotnetInstallDir = $Env:DOTNET_ROOT
+    } else {
+        $DotnetInstallDir = Join-Path -Path $Env:Programfiles -ChildPath "dotnet"
+    }
+}
+if (-Not $(Test-Path "$DotnetInstallDir")) {
+    Write-Error "No installed dotnet '$DotnetInstallDir'."
+}
+
+# Enumerate installed SDKs and uninstall Tizen workload from each.
+$DotnetCommand = "$DotnetInstallDir\dotnet"
+if (Get-Command $DotnetCommand -ErrorAction SilentlyContinue)
+{
+    $InstalledDotnetSdks = Invoke-Expression "& '$DotnetCommand' --list-sdks | Select-String -Pattern '^6|^7|^8|^9|^10'" | ForEach-Object {$_ -replace (" \[.*","")}
+}
+else
+{
+    Write-Error "'$DotnetCommand' occurs an error."
+}
+
+if (-Not $InstalledDotnetSdks)
+{
+    Write-Host "`nNo .NET SDK (6+) found. Nothing to uninstall."
+}
+else
+{
+    foreach ($DotnetSdk in $InstalledDotnetSdks)
+    {
+        try {
+            Write-Host "`nCheck Tizen Workload for sdk $DotnetSdk"
+            Uninstall-TizenWorkload -DotnetVersion $DotnetSdk
+        }
+        catch {
+            Write-Host "Failed to uninstall Tizen Workload for sdk $DotnetSdk"
+            Write-Host "$_"
+            Continue
+        }
+    }
+}
+
+Write-Host "`nDone"