diff --git a/.github/workflows/windows-signing-rehearsal.yml b/.github/workflows/windows-signing-rehearsal.yml
index a42a93504b6..15d5da2f8ac 100644
--- a/.github/workflows/windows-signing-rehearsal.yml
+++ b/.github/workflows/windows-signing-rehearsal.yml
@@ -17,7 +17,19 @@ on:
         default: windows-inner-binaries-zip
 
 jobs:
+  # Ship the same qualified template as release-cut so the reseal over SignPath-rewritten binaries is rehearsed too.
+  orcad-template:
+    permissions:
+      contents: read
+      actions: read
+    uses: ./.github/workflows/qualified-orcad-template.yml
+    with:
+      ref: ${{ github.sha }}
+      # SignPath origin verification covers reusable-workflow jobs, so they stay GitHub-hosted.
+      fast_runners: false
+
   rehearse:
+    needs: orcad-template
     # Why: SignPath origin verification requires GitHub-hosted runners, and
     # windows-2022 matches the real release job's build environment.
     runs-on: windows-2022
@@ -25,6 +37,8 @@ jobs:
     permissions:
       actions: read
       contents: read
+    env:
+      ORCA_REQUIRE_ORCAD_TEMPLATE: '1'
 
     steps:
       - name: Checkout
@@ -79,6 +93,13 @@ jobs:
         env:
           NODE_OPTIONS: --max-old-space-size=4096
 
+      # After the app build so nothing that cleans out/ can drop it; electron-builder ships it.
+      - name: Download the orcad deployment template
+        uses: actions/download-artifact@v8
+        with:
+          name: orcad-template
+          path: out/orcad-template
+
       # Build full --win: --dir never creates the NSIS uninstaller needed for MDE evidence.
       - name: Package Windows app and export the NSIS uninstaller
         shell: pwsh
@@ -111,6 +132,11 @@ jobs:
             Where-Object { $_.Extension -in '.exe', '.dll', '.node' } |
             ForEach-Object {
               $relative = [System.IO.Path]::GetRelativePath($root, $_.FullName)
+              # The orcad template's Linux/macOS addons are data for SSH hosts, not PE files.
+              if ($relative -match '^resources[\\/]orcad-template[\\/]targets[\\/](?!win32-)') {
+                $skipped.Add("$relative  <non-Windows orcad template payload>")
+                return
+              }
               $signature = Get-AuthenticodeSignature -FilePath $_.FullName
               if ($signature.Status -eq 'Valid') {
                 $skipped.Add("$relative  <already signed: $($signature.SignerCertificate.Subject)>")
@@ -214,6 +240,10 @@ jobs:
             throw "Signed inner artifact did not round-trip cleanly ($($failures.Count) failures)."
           }
 
+      # Recompute template checksums over the signed bytes, then verify the template as release-cut does.
+      - name: Reseal the orcad template over its signed binaries
+        run: node config/scripts/packaged-orcad-template.cjs --reseal-signed dist/win-unpacked inner-signing-list.txt
+
       - name: Restore signed uninstaller for the installer rebuild
         shell: pwsh
         env:
diff --git a/config/scripts/windows-signing-rehearsal-orcad-template.test.mjs b/config/scripts/windows-signing-rehearsal-orcad-template.test.mjs
new file mode 100644
index 00000000000..e1328094cfd
--- /dev/null
+++ b/config/scripts/windows-signing-rehearsal-orcad-template.test.mjs
@@ -0,0 +1,45 @@
+import { readFileSync } from 'node:fs'
+import { describe, expect, it } from 'vitest'
+import { parse } from 'yaml'
+
+// The rehearsal must sign and reseal the same template payload release-cut ships, or Windows reseal regressions only surface in a real release.
+function readWorkflow(name) {
+  return parse(readFileSync(new URL(`../../.github/workflows/${name}`, import.meta.url), 'utf8'))
+}
+
+const RESEAL_STEP = 'Reseal the orcad template over its signed binaries'
+const release = readWorkflow('release-cut.yml').jobs.build
+const { jobs } = readWorkflow('windows-signing-rehearsal.yml')
+const rehearse = jobs.rehearse
+const stepIndex = (name) => rehearse.steps.findIndex((step) => step.name === name)
+
+describe('Windows signing rehearsal ships the orcad template', () => {
+  it('packages the qualified template built from the dispatched commit', () => {
+    expect(jobs['orcad-template'].uses).toBe('./.github/workflows/qualified-orcad-template.yml')
+    expect(jobs['orcad-template'].with).toEqual({ ref: '${{ github.sha }}', fast_runners: false })
+    expect(rehearse.needs).toBe('orcad-template')
+    expect(rehearse.env.ORCA_REQUIRE_ORCAD_TEMPLATE).toBe('1')
+    const download = stepIndex('Download the orcad deployment template')
+    expect(download).toBeGreaterThan(stepIndex('Build app'))
+    expect(download).toBeLessThan(stepIndex('Package Windows app and export the NSIS uninstaller'))
+    expect(rehearse.steps[download].with).toEqual({
+      name: 'orcad-template',
+      path: 'out/orcad-template'
+    })
+  })
+
+  it('reseals the signed template exactly like release-cut, before the installer rebuild', () => {
+    const releaseReseal = release.steps.find((step) => step.name === RESEAL_STEP)
+    const reseal = stepIndex(RESEAL_STEP)
+    expect(rehearse.steps[reseal].run).toBe(releaseReseal.run)
+    expect(reseal).toBeGreaterThan(stepIndex('Restore signed inner binaries into unpacked app'))
+    expect(reseal).toBeLessThan(stepIndex('Build NSIS installer from signed unpacked app'))
+  })
+
+  it('keeps non-Windows template addons out of SignPath staging', () => {
+    const filter = "'^resources[\\\\/]orcad-template[\\\\/]targets[\\\\/](?!win32-)'"
+    const staging = (job) => job.steps.find((step) => step.id === 'stage-inner').run
+    expect(staging(release)).toContain(filter)
+    expect(staging(rehearse)).toContain(filter)
+  })
+})