diff --git a/.github/actions/build/ci/action.yml b/.github/actions/build/ci/action.yml
new file mode 100644
index 00000000000..90968d81cfe
--- /dev/null
+++ b/.github/actions/build/ci/action.yml
@@ -0,0 +1,49 @@
+name: CI Build
+description: 'Builds PowerShell'
+runs:
+  using: composite
+  steps:
+  - name: Capture Environment
+    if: success() || failure()
+    run: 'Get-ChildItem -Path env: | Out-String -width 9999 -Stream | write-Verbose -Verbose'
+    shell: pwsh
+  - name: Set Build Name for Non-PR
+    if: github.event_name != 'PullRequest'
+    run: Write-Host "##vso[build.updatebuildnumber]$env:BUILD_SOURCEBRANCHNAME-$env:BUILD_SOURCEVERSION-$((get-date).ToString("yyyyMMddhhmmss"))"
+    shell: pwsh
+  - name: Bootstrap
+    if: success()
+    run: |-
+      Write-Verbose -Verbose "Running Bootstrap..."
+      Import-Module .\tools\ci.psm1
+      Invoke-CIInstall -SkipUser
+      Write-Verbose -Verbose "Start Sync-PSTags"
+      Sync-PSTags -AddRemoteIfMissing
+      Write-Verbose -Verbose "End Sync-PSTags"
+    shell: pwsh
+  - name: Build
+    if: success()
+    run: |-
+      Write-Verbose -Verbose "Running Build..."
+      Import-Module .\tools\ci.psm1
+      Invoke-CIBuild
+    shell: pwsh
+  - name: xUnit Tests
+    if: success()
+    continue-on-error: true
+    run: |-
+      Write-Verbose -Verbose "Running xUnit tests..."
+      Import-Module .\tools\ci.psm1
+      Restore-PSOptions
+      Invoke-CIxUnit -SkipFailing
+    shell: pwsh
+  - name: Upload build artifact
+    uses: actions/upload-artifact@v4
+    with:
+      name: build
+      path: ${{ runner.workspace }}/build
+  - name: Upload xunit artifact
+    uses: actions/upload-artifact@v4
+    with:
+      name: testResults-xunit
+      path: ${{ runner.workspace }}/xunit
diff --git a/.github/actions/test/verify_xunit/action.yml b/.github/actions/test/verify_xunit/action.yml
new file mode 100644
index 00000000000..fccca27182f
--- /dev/null
+++ b/.github/actions/test/verify_xunit/action.yml
@@ -0,0 +1,21 @@
+name: verify_xunit
+description: 'Verify xUnit Results'
+
+runs:
+  using: composite
+  steps:
+  - name: Download build artifacts
+    uses: actions/download-artifact@v4
+    with:
+      path: "${{ github.workspace }}"
+  - name: Capture artifacts directory
+    continue-on-error: true
+    run: dir "${{ github.workspace }}\testResults-xunit\*" -Recurse
+    shell: pwsh
+  - name: Test
+    if: success()
+    run: |-
+      Import-Module .\tools\ci.psm1
+      $xUnitTestResultsFile = "${{ github.workspace }}\testResults-xunit\xUnitTestResults.xml"
+      Test-XUnitTestResults -TestResultsFile $xUnitTestResultsFile
+    shell: pwsh
diff --git a/.github/actions/test/windows/action.yml b/.github/actions/test/windows/action.yml
new file mode 100644
index 00000000000..6cb5cbc1d74
--- /dev/null
+++ b/.github/actions/test/windows/action.yml
@@ -0,0 +1,107 @@
+name: windows_test
+description: 'Test PowerShell on Windows'
+
+inputs:
+  purpose:
+    required: false
+    default: ''
+    type: string
+  tagSet:
+    required: false
+    default: CI
+    type: string
+  ctrfFolder:
+    required: false
+    default: ctrf
+    type: string
+
+runs:
+  using: composite
+  steps:
+  - name: Capture Environment
+    if: success() || failure()
+    run: 'Get-ChildItem -Path env: | Out-String -width 9999 -Stream | write-Verbose -Verbose'
+    shell: pwsh
+  - name: Download Build Artifacts
+    uses: actions/download-artifact@v4
+    with:
+      path: "${{ github.workspace }}"
+  - name: Capture Artifacts Directory
+    continue-on-error: true
+    run: Get-ChildItem "${{ github.workspace }}\build\*" -Recurse
+    shell: pwsh
+
+  - name: Bootstrap
+    shell: powershell
+    run: |-
+      # Remove "Program Files\dotnet" from the env variable PATH, so old SDKs won't affect us.
+      Write-Host "Old Path:"
+      Write-Host $env:Path
+      $dotnetPath = Join-Path $env:SystemDrive 'Program Files\dotnet'
+      $paths = $env:Path -split ";" | Where-Object { -not $_.StartsWith($dotnetPath) }
+      $env:Path = $paths -join ";"
+      Write-Host "New Path:"
+      Write-Host $env:Path
+      # Bootstrap
+      Import-Module .\tools\ci.psm1
+      Invoke-CIInstall
+
+  - name: Test
+    if: success()
+    run: |-
+      Import-Module .\build.psm1 -force
+      Start-PSBootstrap
+      Import-Module .\tools\ci.psm1
+      Restore-PSOptions -PSOptionsPath '${{ github.workspace }}\build\psoptions.json'
+      $options = (Get-PSOptions)
+      $path = split-path -path $options.Output
+      $rootPath = split-Path -path $path
+      Expand-Archive -Path '${{ github.workspace }}\build\build.zip' -DestinationPath $rootPath -Force
+      Invoke-CITest -Purpose '${{ inputs.purpose }}' -TagSet '${{ inputs.tagSet }}' -OutputFormat JUnitXml
+    shell: pwsh
+
+  - name: Convert JUnit to CTRF
+    run: |-
+      Get-ChildItem -Path "${{ runner.workspace }}/testResults/*.xml" -Recurse | ForEach-Object {
+        npx --yes junit-to-ctrf $_.FullName --output .\${{ inputs.ctrfFolder }}\$($_.BaseName).json --tool Pester --env 'Windows ${{ inputs.purpose }} ${{ inputs.tagSet }}'
+      }
+    shell: powershell
+
+  # this task only takes / as directory separators
+  - name: Publish Test Report
+    uses: ctrf-io/github-test-reporter@v1
+    with:
+      report-path: './${{ inputs.ctrfFolder }}/*.json'
+      exit-on-fail: true
+      summary-report: true
+      test-report: false
+      test-list-report: false
+      failed-report: false
+      fail-rate-report: false
+      flaky-report: false
+      flaky-rate-report: false
+      failed-folded-report: true
+      previous-results-report: false
+      ai-report: true
+      skipped-report: false
+      suite-folded-report: false
+      suite-list-report: false
+      pull-request-report: false
+      commit-report: false
+      custom-report: false
+
+    if: always()
+
+  - name: Upload testResults artifact
+    if: always()
+    uses: actions/upload-artifact@v4
+    with:
+      name: junit-pester-${{ inputs.purpose }}-${{ inputs.tagSet }}
+      path: ${{ runner.workspace }}\testResults
+
+  - name: Upload ctrf artifact
+    if: always()
+    uses: actions/upload-artifact@v4
+    with:
+      name: ctrf-pester-${{ inputs.purpose }}-${{ inputs.tagSet }}
+      path: ${{ inputs.ctrfFolder }}
diff --git a/.github/workflows/AssignPrs.yml b/.github/workflows/AssignPrs.yml
index 419d704ce1d..d398cd7cffe 100644
--- a/.github/workflows/AssignPrs.yml
+++ b/.github/workflows/AssignPrs.yml
@@ -1,6 +1,6 @@
 name: Auto Assign PR Maintainer
 on:
-  pull_request:
+  issues:
     types: [opened, edited]
 permissions:
   contents: read
@@ -13,6 +13,7 @@ jobs:
       pull-requests: write
     steps:
       - uses: wow-actions/auto-assign@67fafa03df61d7e5f201734a2fa60d1ab111880d # v3.0.2
+        if: github.event.issue.pull_request
         with:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           # using the `org/team_slug` or `/team_slug` syntax to add git team as reviewers
diff --git a/.github/workflows/rebase.yml b/.github/workflows/rebase.yml
deleted file mode 100644
index df5b4789fb3..00000000000
--- a/.github/workflows/rebase.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-# This cannot rebase workflow changes into a PR
-# It also only works if the GITHUB_TOKEN has permission to push to the branch
-# see: https://github.com/cirrus-actions/rebase/issues/12#issuecomment-632594995
-on:
-  issue_comment:
-    types: [created]
-name: Automatic Rebase
-permissions:
-  contents: read
-
-jobs:
-  rebase:
-    permissions:
-      contents: write  # for cirrus-actions/rebase to push code to rebase
-      pull-requests: write  # for actions/github-script to create PR comment
-    name: Rebase
-    if: github.event.issue.pull_request != '' && contains(github.event.comment.body, '/rebase')
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout the latest code
-      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
-      with:
-        fetch-depth: 0
-    - name: Post rebase started comment to pull request
-      uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-      continue-on-error: true
-      with:
-        script: |
-          const backport_start_body = `Started rebase: https://github.com/${context.repo.owner}/${context.repo.repo}/actions/runs/${process.env.GITHUB_RUN_ID}`;
-          await github.issues.createComment({
-            issue_number: context.issue.number,
-            owner: context.repo.owner,
-            repo: context.repo.repo,
-            body: backport_start_body
-          });
-    - name: Automatic Rebase
-      uses: cirrus-actions/rebase@b87d48154a87a85666003575337e27b8cd65f691 # 1.8
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/windows-ci.yml b/.github/workflows/windows-ci.yml
new file mode 100644
index 00000000000..010c775ee53
--- /dev/null
+++ b/.github/workflows/windows-ci.yml
@@ -0,0 +1,124 @@
+name: Windows-CI
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+      - release/**
+      - feature*
+    paths:
+      - "*"
+      - "!.vsts-ci/misc-analysis.yml"
+      - "!.github/ISSUE_TEMPLATE/*"
+      - "!.github/workflows/*"
+      - "!.dependabot/config.yml"
+      - "!test/perf/*"
+      - "!.pipelines/*"
+  pull_request:
+    branches:
+      - master
+      - release/**
+      - feature*
+    paths:
+      - ".vsts-ci/templates/*"
+      - ".vsts-ci/windows.yml"
+      - "*.props"
+      - build.psm1
+      - src/*
+      - test/*
+      - tools/buildCommon/*
+      - tools/ci.psm1
+      - tools/WindowsCI.psm1
+      - "!test/common/markdown/*"
+      - "!test/perf/*"
+permissions:
+  contents: read
+
+run-name: "${{ github.ref_name }} - ${{ github.run_number }}"
+
+env:
+  DOTNET_CLI_TELEMETRY_OPTOUT: 1
+  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
+  GIT_CONFIG_PARAMETERS: "'core.autocrlf=false'"
+  NugetSecurityAnalysisWarningLevel: none
+  POWERSHELL_TELEMETRY_OPTOUT: 1
+  __SuppressAnsiEscapeSequences: 1
+  nugetMultiFeedWarnLevel: none
+jobs:
+  ci_build:
+    name: Build PowerShell
+    runs-on: windows-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4.1.0
+        with:
+          fetch-depth: 1000
+      - name: Build
+        uses: "./.github/actions/build/ci"
+  windows_test:
+    name: Windows Unelevated CI
+    needs: ci_build
+    runs-on: windows-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4.1.0
+        with:
+          fetch-depth: 1000
+      - name: Windows Unelevated CI
+        uses: "./.github/actions/test/windows"
+        with:
+          purpose: UnelevatedPesterTests
+          tagSet: CI
+  windows_test_2:
+    name: Windows Elevated CI
+    needs: ci_build
+    runs-on: windows-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4.1.0
+        with:
+          fetch-depth: 1000
+      - name: Windows Elevated CI
+        uses: "./.github/actions/test/windows"
+        with:
+          purpose: ElevatedPesterTests
+          tagSet: CI
+  windows_test_3:
+    name: Windows Unelevated Others
+    needs: ci_build
+    runs-on: windows-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4.1.0
+        with:
+          fetch-depth: 1000
+      - name: Windows Unelevated Others
+        uses: "./.github/actions/test/windows"
+        with:
+          purpose: UnelevatedPesterTests
+          tagSet: Others
+  windows_test_4:
+    name: Windows Elevated Others
+    needs: ci_build
+    runs-on: windows-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4.1.0
+        with:
+          fetch-depth: 1000
+      - name: Windows Elevated Others
+        uses: "./.github/actions/test/windows"
+        with:
+          purpose: ElevatedPesterTests
+          tagSet: Others
+  verify_xunit:
+    name: Verify xUnit test results
+    needs: ci_build
+    runs-on: windows-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4.1.0
+        with:
+          fetch-depth: 1000
+      - name: Verify xUnit test results
+        uses: "./.github/actions/test/verify_xunit"
diff --git a/.gitignore b/.gitignore
index cb12a297984..ccadde27182 100644
--- a/.gitignore
+++ b/.gitignore
@@ -111,3 +111,10 @@ msbuild.binlog
 
 # Ignore gzip files in the manpage folder
 assets/manpage/*.gz
+
+# Ignore files and folders generated by some gh cli extensions
+tmp/*
+.env.local
+
+# Ignore CTRF report files
+crtf/*
diff --git a/build.psm1 b/build.psm1
index e21194c9af9..e05b5639af1 100644
--- a/build.psm1
+++ b/build.psm1
@@ -1758,6 +1758,16 @@ function Publish-TestResults
 
         $resolvedPath = (Resolve-Path -Path $Path).ProviderPath
         Write-Host "##vso[artifact.upload containerfolder=testResults;artifactname=testResults]$resolvedPath"
+    } elseif ($env:GITHUB_WORKFLOW -and $env:RUNNER_WORKSPACE) {
+        # In GitHub Actions
+        $destinationPath = Join-Path -Path $env:RUNNER_WORKSPACE -ChildPath 'testResults'
+
+        # Create the folder if it does not exist
+        if (!(Test-Path -Path $destinationPath)) {
+            $null = New-Item -ItemType Directory -Path $destinationPath -Force
+        }
+
+        Copy-Item -Path $Path -Destination $destinationPath -Force -Verbose
     }
 }
 
diff --git a/tools/ci.psm1 b/tools/ci.psm1
index 6628d54e043..7dda90f14f3 100644
--- a/tools/ci.psm1
+++ b/tools/ci.psm1
@@ -17,8 +17,15 @@ if(Test-Path $dotNetPath)
 
 # import build into the global scope so it can be used by packaging
 # argumentList $true says ignore tha we may not be able to build
-Import-Module (Join-Path $repoRoot 'build.psm1') -Verbose -Scope Global -ArgumentList $true
-Import-Module (Join-Path $repoRoot 'tools\packaging') -Verbose -Scope Global
+Write-Verbose "Importing build.psm1" -Verbose
+Import-Module (Join-Path $repoRoot 'build.psm1') -Scope Global -ArgumentList $true
+$buildCommands = Get-Command -Module build
+Write-Verbose "Imported build.psm1 commands: $($buildCommands.Count)" -Verbose
+
+Write-Verbose "Importing packaging.psm1" -Verbose
+Import-Module (Join-Path $repoRoot 'tools\packaging') -Scope Global
+$packagingCommands = Get-Command -Module packaging
+Write-Verbose "Imported packaging.psm1 commands: $($packagingCommands.Count)" -Verbose
 
 # import the windows specific functcion only in Windows PowerShell or on Windows
 if($PSVersionTable.PSEdition -eq 'Desktop' -or $IsWindows)
@@ -224,9 +231,12 @@ function Invoke-CITest
         [string] $Purpose,
         [ValidateSet('CI', 'Others')]
         [string] $TagSet,
-        [string] $TitlePrefix
+        [string] $TitlePrefix,
+        [string] $OutputFormat = "NUnitXml"
     )
 
+    Write-Verbose -Verbose "CI test: OutputFormat: $OutputFormat"
+
     # Set locale correctly for Linux CIs
     Set-CorrectLocale
 
@@ -281,12 +291,14 @@ function Invoke-CITest
             Terse = $true
             Tag = @()
             ExcludeTag = $ExcludeTag + 'RequireAdminOnWindows'
+            OutputFormat = $OutputFormat
         }
 
         $title = "Pester Unelevated - $TagSet"
         if ($TitlePrefix) {
             $title = "$TitlePrefix - $title"
         }
+        Write-Verbose -Verbose "Starting Pester with output format $($arguments.OutputFormat)"
         Start-PSPester @arguments -Title $title
 
         # Fail the build, if tests failed
@@ -314,7 +326,10 @@ function Invoke-CITest
             if ($TitlePrefix) {
                 $title = "$TitlePrefix - $title"
             }
-            Start-PSPester @arguments -Title $title
+
+            # We just built the test tools, we don't need to rebuild them
+            Write-Verbose -Verbose "Starting Pester with output format $($arguments.OutputFormat)"
+            Start-PSPester @arguments -Title $title -SkipTestToolBuild
 
             # Fail the build, if tests failed
             Test-PSPesterResults -TestResultsFile $expFeatureTestResultFile
@@ -328,12 +343,15 @@ function Invoke-CITest
             OutputFile = $testResultsAdminFile
             Tag = @('RequireAdminOnWindows')
             ExcludeTag = $ExcludeTag
+            OutputFormat = $OutputFormat
         }
 
         $title = "Pester Elevated - $TagSet"
         if ($TitlePrefix) {
             $title = "$TitlePrefix - $title"
         }
+
+        Write-Verbose -Verbose "Starting Pester with output format $($arguments.OutputFormat)"
         Start-PSPester @arguments -Title $title
 
         # Fail the build, if tests failed
@@ -364,6 +382,8 @@ function Invoke-CITest
             if ($TitlePrefix) {
                 $title = "$TitlePrefix - $title"
             }
+
+            Write-Verbose -Verbose "Starting Pester with output format $($arguments.OutputFormat)"
             Start-PSPester @arguments -Title $title
 
             # Fail the build, if tests failed
@@ -437,6 +457,18 @@ function Push-Artifact
     if ($env:TF_BUILD) {
         # In Azure DevOps
         Write-Host "##vso[artifact.upload containerfolder=$artifactName;artifactname=$artifactName;]$Path"
+    } elseif ($env:GITHUB_WORKFLOW -and $env:RUNNER_WORKSPACE) {
+        # In GitHub Actions
+        $destinationPath = Join-Path -Path $env:RUNNER_WORKSPACE -ChildPath $artifactName
+
+        # Create the folder if it does not exist
+        if (!(Test-Path -Path $destinationPath)) {
+            $null = New-Item -ItemType Directory -Path $destinationPath -Force
+        }
+
+        Copy-Item -Path $Path -Destination $destinationPath -Force -Verbose
+    } else {
+        Write-Warning "Push-Artifact is not supported in this environment."
     }
 }