diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5915ab931..7993ebe97 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -859,7 +859,7 @@ jobs:
       with:
         name: openclaw-msix-store-unsigned-${{ matrix.architecture }}
         path: |
-          artifacts/msix/${{ matrix.architecture }}/OpenClawCompanion-${{ matrix.architecture }}.msix
+          artifacts/msix/${{ matrix.architecture }}/OpenClaw-${{ matrix.architecture }}.msix
           artifacts/msix/${{ matrix.architecture }}/msix-metadata.json
         if-no-files-found: error
 
@@ -891,7 +891,7 @@ jobs:
       with:
         name: openclaw-msix-dev-${{ matrix.architecture }}
         path: |
-          artifacts/msix-dev/${{ matrix.architecture }}/OpenClawCompanion-Dev-${{ matrix.architecture }}.msix
+          artifacts/msix-dev/${{ matrix.architecture }}/OpenClaw-Dev-${{ matrix.architecture }}.msix
           artifacts/msix-dev/${{ matrix.architecture }}/OpenClaw-Dev.cer
           artifacts/msix-dev/${{ matrix.architecture }}/msix-metadata.json
           artifacts/msix-dev/${{ matrix.architecture }}/INSTALL.txt
diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index 0c09c2b83..10e51513b 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -291,7 +291,7 @@ Partner Center rejects any submission whose revision is non-zero.
 `-Msix Store` forces `-Configuration Release`, refuses to combine with
 `-DevBuild`, and delegates to `scripts\Build-StoreMsix.ps1` once
 per architecture. Each run produces one unsigned self-contained package at
-`artifacts\msix\<arch>\OpenClawCompanion-<arch>.msix` alongside an
+`artifacts\msix\<arch>\OpenClaw-<arch>.msix` alongside an
 `msix-metadata.json` provenance sidecar recording the source commit, whether
 the tree was dirty, the package version, publisher, and the package SHA-256.
 
@@ -330,8 +330,12 @@ Download the desired ZIP from the workflow run's **Artifacts**:
 
 | Artifact | Contents and purpose |
 |---|---|
-| `openclaw-msix-dev-x64` / `openclaw-msix-dev-arm64` | Signed Dev `.msix`, public `OpenClaw-Dev.cer`, `msix-metadata.json`, and `INSTALL.txt` for opt-in tester installation. |
-| `openclaw-msix-store-unsigned-x64` / `openclaw-msix-store-unsigned-arm64` | Unsigned Store `.msix` and the validated provenance sidecar from `Build-StoreMsix.ps1`. Submission inputs, not directly installable tester packages. |
+| `openclaw-msix-dev-x64` / `openclaw-msix-dev-arm64` | Signed `OpenClaw-Dev-<arch>.msix`, public `OpenClaw-Dev.cer`, `msix-metadata.json`, and `INSTALL.txt` for opt-in tester installation. |
+| `openclaw-msix-store-unsigned-x64` / `openclaw-msix-store-unsigned-arm64` | Unsigned `OpenClaw-<arch>.msix` and the validated provenance sidecar from `Build-StoreMsix.ps1`. Submission inputs, not directly installable tester packages. |
+
+These MSIX filenames use `OpenClaw`, not the previous `OpenClawCompanion`
+prefix. Only the download filenames changed: package identities, versions,
+and EXE installer filenames are unchanged. Existing downloads are not renamed.
 
 Each disposable runner uses `setup-dev-msix-cert.ps1` to generate and trust a
 non-exportable Dev certificate. Only its public `.cer` is included. The key and
diff --git a/build.ps1 b/build.ps1
index 562ac40ba..9161ec2b2 100644
--- a/build.ps1
+++ b/build.ps1
@@ -597,7 +597,7 @@ if ($buildStoreMsix) {
             Write-Error "Store MSIX ($storeArchitecture) packaging failed: $($_.Exception.Message)"
             exit 1
         }
-        $storePackages += Join-Path $repoRoot "artifacts\msix\$storeArchitecture\OpenClawCompanion-$storeArchitecture.msix"
+        $storePackages += Join-Path $repoRoot "artifacts\msix\$storeArchitecture\OpenClaw-$storeArchitecture.msix"
     }
 
     Write-Header "Store MSIX Packages"
diff --git a/docs/RELEASING.md b/docs/RELEASING.md
index e5953d87b..e5b81aa06 100644
--- a/docs/RELEASING.md
+++ b/docs/RELEASING.md
@@ -175,9 +175,9 @@ Current release artifacts are:
 
 Canonical alpha releases additionally contain:
 
-- `OpenClawCompanion-x64.msix` and `OpenClawCompanion-arm64.msix`
-- `OpenClawCompanion-x64.msix-metadata.json` and
-  `OpenClawCompanion-arm64.msix-metadata.json`
+- `OpenClaw-x64.msix` and `OpenClaw-arm64.msix`
+- `OpenClaw-x64.msix-metadata.json` and
+  `OpenClaw-arm64.msix-metadata.json`
 
 These are **unsigned Store submission inputs, not installers**. Download the
 MSIX files and upload them manually to Partner Center. Microsoft signs accepted
diff --git a/scripts/Build-StoreMsix.ps1 b/scripts/Build-StoreMsix.ps1
index adbd8d06d..af0ba85f8 100644
--- a/scripts/Build-StoreMsix.ps1
+++ b/scripts/Build-StoreMsix.ps1
@@ -208,7 +208,7 @@ try {
         )
     }
 
-    $msixName = "OpenClawCompanion-$Architecture.msix"
+    $msixName = "OpenClaw-$Architecture.msix"
     $msixPath = Join-Path $OutputDirectory $msixName
     Copy-Item -LiteralPath $builtPackages[0].FullName -Destination $msixPath -Force
 
diff --git a/scripts/Export-DevMsixArtifact.ps1 b/scripts/Export-DevMsixArtifact.ps1
index 53811659b..6366dddcf 100644
--- a/scripts/Export-DevMsixArtifact.ps1
+++ b/scripts/Export-DevMsixArtifact.ps1
@@ -77,7 +77,7 @@ if ($LASTEXITCODE -ne 0 -or $sourceCommit -notmatch '^[0-9a-fA-F]{40}$') {
 $sourceTreeDirty = [bool](& git -C $repositoryRoot status --porcelain)
 if ($LASTEXITCODE -ne 0) { throw 'Unable to inspect the current source tree.' }
 
-$packageName = "OpenClawCompanion-Dev-$Architecture.msix"
+$packageName = "OpenClaw-Dev-$Architecture.msix"
 New-Item -ItemType Directory -Path $OutputDirectory -Force | Out-Null
 Copy-Item -LiteralPath $package.FullName -Destination (Join-Path $OutputDirectory $packageName)
 $certificatePath = Join-Path $OutputDirectory 'OpenClaw-Dev.cer'
diff --git a/scripts/Stage-StoreMsixReleaseAssets.ps1 b/scripts/Stage-StoreMsixReleaseAssets.ps1
index 1e49c1f40..2e749bdbe 100644
--- a/scripts/Stage-StoreMsixReleaseAssets.ps1
+++ b/scripts/Stage-StoreMsixReleaseAssets.ps1
@@ -32,7 +32,7 @@ if ((Test-Path -LiteralPath $OutputDirectory) -and
 $expectedVersion = ($Version -replace '-alpha\.\d+$', '') + '.0'
 $packages = foreach ($architecture in @('x64', 'arm64')) {
     $directory = Join-Path $ArtifactDirectory "openclaw-msix-store-unsigned-$architecture"
-    $packageName = "OpenClawCompanion-$architecture.msix"
+    $packageName = "OpenClaw-$architecture.msix"
     $expectedFiles = @($packageName, 'msix-metadata.json') | Sort-Object
     $entries = @(Get-ChildItem -LiteralPath $directory -Force)
     if ($entries.Count -ne 2 -or
@@ -80,7 +80,7 @@ $files = foreach ($package in $packages) {
     Notes = @"
 ### Unsigned Store submission packages (alpha only)
 
-OpenClawCompanion-x64.msix and OpenClawCompanion-arm64.msix are unsigned
+OpenClaw-x64.msix and OpenClaw-arm64.msix are unsigned
 Partner Center submission inputs, not installers. Their architecture-specific
 metadata files record the source commit, package version, and SHA-256.
 Upload the MSIX files manually to Partner Center; Microsoft signs accepted
diff --git a/scripts/test-ci-workflow-contract.ps1 b/scripts/test-ci-workflow-contract.ps1
index fa62adac7..fc284b92d 100644
--- a/scripts/test-ci-workflow-contract.ps1
+++ b/scripts/test-ci-workflow-contract.ps1
@@ -668,6 +668,8 @@ foreach ($token in @(
         '-CertificateThumbprint $thumbprint',
         'name: openclaw-msix-store-unsigned-${{ matrix.architecture }}',
         'name: openclaw-msix-dev-${{ matrix.architecture }}',
+        'artifacts/msix/${{ matrix.architecture }}/OpenClaw-${{ matrix.architecture }}.msix',
+        'artifacts/msix-dev/${{ matrix.architecture }}/OpenClaw-Dev-${{ matrix.architecture }}.msix',
         'msix-metadata.json',
         'OpenClaw-Dev.cer',
         'INSTALL.txt',
@@ -726,8 +728,8 @@ Assert-Contains -Text $createRelease -Expected '${{ steps.msix_alpha.outputs.fil
 Assert-Contains -Text $createRelease -Expected '${{ steps.msix_alpha.outputs.notes }}' -Message "Only alpha release notes may mention MSIX downloads."
 Assert-Contains -Text $createRelease -Expected 'fail_on_unmatched_files: true' -Message "Missing release files must fail publication."
 Assert-Contains -Text $createRelease -Expected "make_latest: `${{ needs.metadata.outputs.isPrerelease == 'true' && 'false' || 'true' }}" -Message "Alpha releases must not become Latest."
-Assert-NotContains -Text $createRelease -Unexpected 'OpenClawCompanion-x64.msix' -Message "MSIX must not be an unconditional stable release asset."
-Assert-NotContains -Text $createRelease -Unexpected 'OpenClawCompanion-arm64.msix' -Message "MSIX must not be an unconditional stable release asset."
+Assert-NotContains -Text $createRelease -Unexpected 'OpenClaw-x64.msix' -Message "MSIX must not be an unconditional stable release asset."
+Assert-NotContains -Text $createRelease -Unexpected 'OpenClaw-arm64.msix' -Message "MSIX must not be an unconditional stable release asset."
 Assert-Contains -Text $workflow -Expected "./scripts/test-msix-ci-artifacts.ps1" -Message "Fast validation must exercise the Dev artifact contracts."
 Assert-Contains -Text $workflow -Expected "./scripts/test-msix-alpha-release.ps1" -Message "Fast validation must exercise alpha release staging."
 
diff --git a/scripts/test-msix-alpha-release.ps1 b/scripts/test-msix-alpha-release.ps1
index 660aca423..9f8d042a0 100644
--- a/scripts/test-msix-alpha-release.ps1
+++ b/scripts/test-msix-alpha-release.ps1
@@ -36,7 +36,7 @@ function New-Fixture {
     foreach ($architecture in @('x64', 'arm64')) {
         $directory = Join-Path $inputPath "openclaw-msix-store-unsigned-$architecture"
         New-Item -ItemType Directory -Path $directory -Force | Out-Null
-        $packageName = "OpenClawCompanion-$architecture.msix"
+        $packageName = "OpenClaw-$architecture.msix"
         $packagePath = Join-Path $directory $packageName
         Set-Content -LiteralPath $packagePath -Value "Synthetic $architecture package fixture."
         [ordered]@{
@@ -69,18 +69,18 @@ try {
     $assets = & $stager @arguments
     $names = @($assets.Files | ForEach-Object { [IO.Path]::GetFileName($_) } | Sort-Object)
     $expected = @(
-        'OpenClawCompanion-arm64.msix',
-        'OpenClawCompanion-arm64.msix-metadata.json',
-        'OpenClawCompanion-x64.msix',
-        'OpenClawCompanion-x64.msix-metadata.json'
+        'OpenClaw-arm64.msix',
+        'OpenClaw-arm64.msix-metadata.json',
+        'OpenClaw-x64.msix',
+        'OpenClaw-x64.msix-metadata.json'
     )
     if (@(Compare-Object $expected $names).Count -gt 0 -or
         @(Get-ChildItem -LiteralPath $arguments.OutputDirectory).Count -ne 4) {
         throw 'Release assets did not match the exact public Store allowlist.'
     }
     foreach ($architecture in @('x64', 'arm64')) {
-        $original = Join-Path $arguments.ArtifactDirectory "openclaw-msix-store-unsigned-$architecture\OpenClawCompanion-$architecture.msix"
-        $copy = Join-Path $arguments.OutputDirectory "OpenClawCompanion-$architecture.msix"
+        $original = Join-Path $arguments.ArtifactDirectory "openclaw-msix-store-unsigned-$architecture\OpenClaw-$architecture.msix"
+        $copy = Join-Path $arguments.OutputDirectory "OpenClaw-$architecture.msix"
         if ((Get-FileHash -LiteralPath $original).Hash -ne (Get-FileHash -LiteralPath $copy).Hash) {
             throw 'Staging changed the validated package bytes.'
         }
@@ -90,7 +90,7 @@ try {
             throw 'Published metadata did not describe the released file.'
         }
     }
-    foreach ($warning in @('unsigned', 'not installers', '2026.7.2.0', 'same Store version', 'Dev-signed tester downloads remain in Actions')) {
+    foreach ($warning in @('OpenClaw-x64.msix', 'OpenClaw-arm64.msix', 'unsigned', 'not installers', '2026.7.2.0', 'same Store version', 'Dev-signed tester downloads remain in Actions')) {
         if (-not $assets.Notes.Contains($warning)) { throw "Release notes are missing '$warning'." }
     }
     Assert-Fails { & $stager @arguments } 'absent or empty'
@@ -126,7 +126,7 @@ try {
     Set-Content -LiteralPath (Join-Path $arguments.ArtifactDirectory 'openclaw-msix-store-unsigned-x64\extra.pfx') 'not a real key'
     Assert-Fails { & $stager @arguments } 'exactly'
     $arguments = New-Fixture
-    Remove-Item -LiteralPath (Join-Path $arguments.ArtifactDirectory 'openclaw-msix-store-unsigned-arm64\OpenClawCompanion-arm64.msix')
+    Remove-Item -LiteralPath (Join-Path $arguments.ArtifactDirectory 'openclaw-msix-store-unsigned-arm64\OpenClaw-arm64.msix')
     Assert-Fails { & $stager @arguments } 'exactly'
     $arguments = New-Fixture
     $arguments.Version = '2026.7.3-alpha.4'
diff --git a/scripts/test-msix-ci-artifacts.ps1 b/scripts/test-msix-ci-artifacts.ps1
index 36f805f49..c6234ebdd 100644
--- a/scripts/test-msix-ci-artifacts.ps1
+++ b/scripts/test-msix-ci-artifacts.ps1
@@ -83,31 +83,42 @@ function New-Arguments {
 
 try {
     Add-Type -AssemblyName System.IO.Compression.FileSystem
-    $arguments = New-Arguments
-    New-Package -Directory $arguments.PackageDirectory
-    # Unrelated build output must not be uploaded, even if it contains a key.
-    Set-Content (Join-Path $arguments.PackageDirectory 'do-not-publish.pfx') 'not a real key'
-    & $exporter @arguments
-    $files = @(Get-ChildItem -LiteralPath $arguments.OutputDirectory -File | Sort-Object Name | Select-Object -ExpandProperty Name)
-    if (($files -join ',') -ne 'INSTALL.txt,msix-metadata.json,OpenClaw-Dev.cer,OpenClawCompanion-Dev-x64.msix') {
-        throw "Unexpected Dev artifact contents: $($files -join ',')"
-    }
-    $metadata = Get-Content (Join-Path $arguments.OutputDirectory 'msix-metadata.json') -Raw | ConvertFrom-Json
-    $publicCertificate = [Security.Cryptography.X509Certificates.X509Certificate2]::new(
-        (Join-Path $arguments.OutputDirectory 'OpenClaw-Dev.cer'))
-    try {
-        if ($publicCertificate.HasPrivateKey -or $publicCertificate.Thumbprint -ne $certificate.Thumbprint) {
-            throw 'The exported certificate is not the expected public-only signer.'
+    foreach ($architecture in @('x64', 'arm64')) {
+        $arguments = New-Arguments
+        $arguments.Architecture = $architecture
+        New-Package -Directory $arguments.PackageDirectory -Architecture $architecture
+        # Unrelated build output must not be uploaded, even if it contains a key.
+        Set-Content (Join-Path $arguments.PackageDirectory 'do-not-publish.pfx') 'not a real key'
+        & $exporter @arguments
+        $packageName = "OpenClaw-Dev-$architecture.msix"
+        $expectedFiles = @('INSTALL.txt', 'msix-metadata.json', 'OpenClaw-Dev.cer', $packageName)
+        $files = @(Get-ChildItem -LiteralPath $arguments.OutputDirectory -File | Select-Object -ExpandProperty Name)
+        if (@(Compare-Object $expectedFiles $files).Count -gt 0) {
+            throw "Unexpected Dev artifact contents: $($files -join ',')"
         }
+        $metadata = Get-Content (Join-Path $arguments.OutputDirectory 'msix-metadata.json') -Raw | ConvertFrom-Json
+        $publicCertificate = [Security.Cryptography.X509Certificates.X509Certificate2]::new(
+            (Join-Path $arguments.OutputDirectory 'OpenClaw-Dev.cer'))
+        try {
+            if ($publicCertificate.HasPrivateKey -or $publicCertificate.Thumbprint -ne $certificate.Thumbprint) {
+                throw 'The exported certificate is not the expected public-only signer.'
+            }
+        }
+        finally { $publicCertificate.Dispose() }
+        $actualHash = (Get-FileHash (Join-Path $arguments.OutputDirectory $metadata.archive) -Algorithm SHA256).Hash
+        if (-not $metadata.signed -or $metadata.signing -ne 'development-only' -or
+            $metadata.archive -ne $packageName -or $metadata.architecture -ne $architecture -or
+            $metadata.identityName -ne 'OpenClawFoundation.OpenClaw.Dev' -or
+            $metadata.packageVersion -ne '2026.7.2.123' -or $metadata.sha256 -ne $actualHash -or
+            $metadata.certificateThumbprint -ne $certificate.Thumbprint -or $metadata.sourceCommit -notmatch '^[0-9a-f]{40}$') {
+            throw 'Dev package provenance did not match its inputs.'
+        }
+        $instructions = Get-Content (Join-Path $arguments.OutputDirectory 'INSTALL.txt') -Raw
+        if (-not $instructions.Contains("Add-AppxPackage -Path .\$packageName")) {
+            throw 'Dev installation instructions did not name the exported package.'
+        }
+        Assert-Fails { & $exporter @arguments } 'must be absent or empty'
     }
-    finally { $publicCertificate.Dispose() }
-    $actualHash = (Get-FileHash (Join-Path $arguments.OutputDirectory $metadata.archive) -Algorithm SHA256).Hash
-    if (-not $metadata.signed -or $metadata.signing -ne 'development-only' -or
-        $metadata.packageVersion -ne '2026.7.2.123' -or $metadata.sha256 -ne $actualHash -or
-        $metadata.certificateThumbprint -ne $certificate.Thumbprint -or $metadata.sourceCommit -notmatch '^[0-9a-f]{40}$') {
-        throw 'Dev package provenance did not match its inputs.'
-    }
-    Assert-Fails { & $exporter @arguments } 'must be absent or empty'
 
     $arguments = New-Arguments
     New-Item -ItemType Directory -Path $arguments.PackageDirectory | Out-Null
diff --git a/tests/OpenClaw.Tray.Tests/MsixDevelopmentSigningTests.cs b/tests/OpenClaw.Tray.Tests/MsixDevelopmentSigningTests.cs
index 2ec9421e3..6a9cd325d 100644
--- a/tests/OpenClaw.Tray.Tests/MsixDevelopmentSigningTests.cs
+++ b/tests/OpenClaw.Tray.Tests/MsixDevelopmentSigningTests.cs
@@ -94,7 +94,8 @@ public void BuildScript_StoreMsixPathIsUnsignedReleaseIdentityForBothArchitectur
 
         // Exactly one package per architecture, deterministically named, with provenance.
         Assert.Contains("$builtPackages.Count -ne 1", packagingScript);
-        Assert.Contains("\"OpenClawCompanion-$Architecture.msix\"", packagingScript);
+        Assert.Contains("\"OpenClaw-$Architecture.msix\"", packagingScript);
+        Assert.Contains(@"artifacts\msix\$storeArchitecture\OpenClaw-$storeArchitecture.msix", buildScript);
         Assert.Contains("msix-metadata.json", packagingScript);
         Assert.Contains("signed = $false", packagingScript);
         Assert.Contains("sourceTreeDirty = $sourceTreeDirty", packagingScript);
diff --git a/tests/OpenClaw.Tray.Tests/ReleaseSigningWorkflowTests.cs b/tests/OpenClaw.Tray.Tests/ReleaseSigningWorkflowTests.cs
index 6876d9b98..1c2242294 100644
--- a/tests/OpenClaw.Tray.Tests/ReleaseSigningWorkflowTests.cs
+++ b/tests/OpenClaw.Tray.Tests/ReleaseSigningWorkflowTests.cs
@@ -137,8 +137,8 @@ public void ReleaseWorkflow_PublishesOnlyUnsignedStoreMsixForAlphaTags()
         var releaseStep = ExtractReleaseStep(workflow);
         Assert.Contains("${{ steps.msix_alpha.outputs.files }}", releaseStep);
         Assert.Contains("${{ steps.msix_alpha.outputs.notes }}", releaseStep);
-        Assert.DoesNotContain("OpenClawCompanion-x64.msix", releaseStep);
-        Assert.DoesNotContain("OpenClawCompanion-arm64.msix", releaseStep);
+        Assert.DoesNotContain("OpenClaw-x64.msix", releaseStep);
+        Assert.DoesNotContain("OpenClaw-arm64.msix", releaseStep);
         Assert.DoesNotContain("openclaw-msix-dev-", releaseStep);
     }