diff --git a/.ado/scripts/build.js b/.ado/scripts/build.js
index 47df62d2c65..db46551eba9 100644
--- a/.ado/scripts/build.js
+++ b/.ado/scripts/build.js
@@ -101,7 +101,7 @@ function ensureNuGet(toolsPath) {
   ensureDir(toolsPath);
   console.log(`Downloading nuget.exe to: ${localNuGet}`);
   execSync(
-    `powershell.exe -NoLogo -NoProfile -Command ` +
+    `pwsh.exe -NoLogo -NoProfile -Command ` +
       `"[Net.ServicePointManager]::SecurityProtocol = ` +
       `[Net.SecurityProtocolType]::Tls12; ` +
       `Invoke-WebRequest -Uri 'https://dist.nuget.org/win-x86-commandline/latest/nuget.exe' ` +
diff --git a/.ado/templates/yarn-install.yml b/.ado/templates/yarn-install.yml
index ad9ce780eff..826595f2c75 100644
--- a/.ado/templates/yarn-install.yml
+++ b/.ado/templates/yarn-install.yml
@@ -4,6 +4,15 @@ parameters:
   default: .
 
 steps:
+  - task: NuGetToolInstaller@1
+    inputs:
+      versionSpec: ">=5.8.0"
+
+  - task: NuGetAuthenticate@1
+    displayName: 'NuGet Authenticate Internal WinAppSDK Feed'
+    inputs:
+      nuGetServiceConnections: 'WinAppSDK Experimental NuGet for RNW'
+
   - script: yarn --cwd ${{ parameters.workingDirectory }} install --immutable
     displayName: yarn install (immutable)
     retryCountOnTaskFailure: 2
diff --git a/change/@react-native-windows-cli-d0909d53-2984-4eff-bcf6-fe1702c03277.json b/change/@react-native-windows-cli-d0909d53-2984-4eff-bcf6-fe1702c03277.json
new file mode 100644
index 00000000000..46065e97e3a
--- /dev/null
+++ b/change/@react-native-windows-cli-d0909d53-2984-4eff-bcf6-fe1702c03277.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Upgrade to PowerShell 7",
+  "packageName": "@react-native-windows/cli",
+  "email": "julio.rocha@microsoft.com",
+  "dependentChangeType": "patch"
+}
diff --git a/change/react-native-windows-f8669931-74f3-4c8e-a1d1-ecb19860ee42.json b/change/react-native-windows-f8669931-74f3-4c8e-a1d1-ecb19860ee42.json
new file mode 100644
index 00000000000..f1e3abb1df6
--- /dev/null
+++ b/change/react-native-windows-f8669931-74f3-4c8e-a1d1-ecb19860ee42.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Upgrade to PowerShell 7",
+  "packageName": "react-native-windows",
+  "email": "julio.rocha@microsoft.com",
+  "dependentChangeType": "patch"
+}
diff --git a/packages/@react-native-windows/cli/src/utils/commandWithProgress.ts b/packages/@react-native-windows/cli/src/utils/commandWithProgress.ts
index 74e8bec3d0c..8c7577e8e48 100644
--- a/packages/@react-native-windows/cli/src/utils/commandWithProgress.ts
+++ b/packages/@react-native-windows/cli/src/utils/commandWithProgress.ts
@@ -4,7 +4,10 @@
  * @format
  */
 
-import {spawn, SpawnOptions} from 'child_process';
+import {execSync, spawn, SpawnOptions} from 'child_process';
+import fs from 'fs';
+import os from 'os';
+import path from 'path';
 import ora from 'ora';
 import spinners from 'cli-spinners';
 import chalk from 'chalk';
@@ -47,7 +50,47 @@ export function newSpinner(text: string) {
   return ora(options).start();
 }
 
-export const powershell = `${process.env.SystemRoot}\\System32\\WindowsPowerShell\\v1.0\\powershell.exe`;
+function getGlobalNuGetPackagesFolder(): string {
+  if (process.env.NUGET_PACKAGES) {
+    return process.env.NUGET_PACKAGES;
+  }
+  try {
+    const output = execSync('nuget locals global-packages -list', {
+      encoding: 'utf8',
+    }).trim();
+    const match = output.match(/global-packages:\s*(.+)/i);
+    if (match) {
+      return match[1].trim();
+    }
+  } catch {}
+  return path.join(os.homedir(), '.nuget', 'packages');
+}
+
+function findPwsh(): string {
+  const nugetPackages = getGlobalNuGetPackagesFolder();
+  const nugetPwsh = path.join(
+    nugetPackages,
+    'PowerShell.7.6.1',
+    'tools',
+    'net8.0',
+    'any',
+    'pwsh.exe',
+  );
+  if (fs.existsSync(nugetPwsh)) {
+    return nugetPwsh;
+  }
+
+  try {
+    const found = execSync('where pwsh.exe', {encoding: 'utf8'}).trim();
+    if (found) {
+      return found.split(/\r?\n/)[0];
+    }
+  } catch {}
+
+  return `${process.env.SystemRoot}\\System32\\WindowsPowerShell\\v1.0\\powershell.exe`;
+}
+
+export const powershell = findPwsh();
 
 export async function runPowerShellScriptFunction(
   taskDescription: string,
diff --git a/vnext/Microsoft.ReactNative.Cxx.UnitTests/packages.experimentalwinui3.lock.json b/vnext/Microsoft.ReactNative.Cxx.UnitTests/packages.experimentalwinui3.lock.json
deleted file mode 100644
index 37e573dcf94..00000000000
--- a/vnext/Microsoft.ReactNative.Cxx.UnitTests/packages.experimentalwinui3.lock.json
+++ /dev/null
@@ -1,194 +0,0 @@
-{
-  "version": 1,
-  "dependencies": {
-    "native,Version=v0.0": {
-      "Microsoft.googletest.v140.windesktop.msvcstl.static.rt-dyn": {
-        "type": "Direct",
-        "requested": "[1.8.1.7, )",
-        "resolved": "1.8.1.7",
-        "contentHash": "FxNwT4YpsGdqforqFSTGc5f/e+qfRJ+1wf5G1w0nEEkT5pr5M95E5+fOuswpPUGXPZIXM+M7BSVGnCRcQZjomA=="
-      },
-      "Microsoft.Windows.CppWinRT": {
-        "type": "Direct",
-        "requested": "[2.0.230706.1, )",
-        "resolved": "2.0.230706.1",
-        "contentHash": "l0D7oCw/5X+xIKHqZTi62TtV+1qeSz7KVluNFdrJ9hXsst4ghvqQ/Yhura7JqRdZWBXAuDS0G0KwALptdoxweQ=="
-      },
-      "Microsoft.WindowsAppSDK": {
-        "type": "Direct",
-        "requested": "[2.0.0-experimental3, )",
-        "resolved": "2.0.0-experimental3",
-        "contentHash": "eP4XWWccngqnwyJVTYbdlVDyUyFW7EintimqOyq3ttk/h4dCwvW0FNTjq6qvnzkmWKiSqoXau/d5Dy27wSAKpg==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.AI": "[2.0.57-experimental]",
-          "Microsoft.WindowsAppSDK.Base": "[2.0.0-experimental]",
-          "Microsoft.WindowsAppSDK.DWrite": "[2.0.0-experimental]",
-          "Microsoft.WindowsAppSDK.Foundation": "[2.0.8-experimental]",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "[2.0.3-experimental]",
-          "Microsoft.WindowsAppSDK.ML": "[2.0.44-experimental]",
-          "Microsoft.WindowsAppSDK.Runtime": "[2.0.0-experimental3]",
-          "Microsoft.WindowsAppSDK.Widgets": "[2.0.2-experimental]",
-          "Microsoft.WindowsAppSDK.WinUI": "[2.0.3-experimental]"
-        }
-      },
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3405.78",
-        "contentHash": "ceiIKuPHnzOf5CUv9nGpIBx0CWCCMWcBdv05QuonmUnpPtm6XDyAh6osgvin7MTpVD5O0+NbS5ts/WU9sgXgvA=="
-      },
-      "Microsoft.Windows.SDK.BuildTools": {
-        "type": "Transitive",
-        "resolved": "10.0.26100.4654",
-        "contentHash": "2mgcOlj/t2RfSyyw+pVESfO+Tk1RkfQzto9Vrq42M1lUQIfQEwbi8QLha9GXWIOj+TFzeHIEJckIoF25mgiM8A=="
-      },
-      "Microsoft.Windows.SDK.BuildTools.MSIX": {
-        "type": "Transitive",
-        "resolved": "1.7.20250829.1",
-        "contentHash": "IMdvRmCIZnBS5GkYnv0po1bcx6U1OF39pqA4TphQ9evDzpCRoSE19/PkDvlUNNrBavTsLIEJgd/TAIFner75ow=="
-      },
-      "Microsoft.WindowsAppSDK.AI": {
-        "type": "Transitive",
-        "resolved": "2.0.57-experimental",
-        "contentHash": "iCDkCyYFnryJjSRAVU3dmOyZaT3wO8COv+gCMImbDiRK6Kx047pYkJalrs/mOK2GbS8GVzgGAh4pOGaavzQmpw==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental",
-          "Microsoft.WindowsAppSDK.Foundation": "2.0.3-experimental"
-        }
-      },
-      "Microsoft.WindowsAppSDK.Base": {
-        "type": "Transitive",
-        "resolved": "2.0.0-experimental",
-        "contentHash": "xQY42zJd61lTemFhaEl0GQ+YNHIPeeLnF5sM4lhKfOE0fX3aYCPPH5begOcJBhxsorCk90MGLvCq8dy058sBHg==",
-        "dependencies": {
-          "Microsoft.Windows.SDK.BuildTools": "10.0.26100.4654",
-          "Microsoft.Windows.SDK.BuildTools.MSIX": "1.7.20250829.1"
-        }
-      },
-      "Microsoft.WindowsAppSDK.DWrite": {
-        "type": "Transitive",
-        "resolved": "2.0.0-experimental",
-        "contentHash": "B21j5wUaHab3LbyaOiGXCRlxW+D2Z7hnUZvALenLseEWDPUYyLvClZgXIYJd3s60J3B+CVQOAop9VQiOzRRquw==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental"
-        }
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "2.0.8-experimental",
-        "contentHash": "8z2LKsnccAJ2RaXmLNZb7JLrSsX6Ud2nlL3Rz6YO4i1iFu9zYEuIdxz6cxsc/+ZSC8bGSQR8O/4k8NIY+qeXYA==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "2.0.3-experimental"
-        }
-      },
-      "Microsoft.WindowsAppSDK.InteractiveExperiences": {
-        "type": "Transitive",
-        "resolved": "2.0.3-experimental",
-        "contentHash": "Ck3QUVmo/KIKYK9Fo5YzL8eoUbjkRoBkGJdTQbcXVI61CFoxkwypnNckoyWyM6PfzS8KoxasHJbI8YSt+DNgfw==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental"
-        }
-      },
-      "Microsoft.WindowsAppSDK.ML": {
-        "type": "Transitive",
-        "resolved": "2.0.44-experimental",
-        "contentHash": "cnPfVfMfOhbVobG417zJVbWLA0P5QZHqrMBEDndQNOcgpUEtKJNY2mC+n3+SLr14P1mKPpzPP9vm/O9APsq4bw==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental",
-          "Microsoft.WindowsAppSDK.Foundation": "2.0.8-experimental"
-        }
-      },
-      "Microsoft.WindowsAppSDK.Runtime": {
-        "type": "Transitive",
-        "resolved": "2.0.0-experimental3",
-        "contentHash": "ikNSjK07rUFBWdYwkM/2sSQzxieYgRwVDSM7PJxMxIkSGSeAeba8jmDST05oJfDWtXOpNqfn4CTeaZ/6y8yfNw==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental"
-        }
-      },
-      "Microsoft.WindowsAppSDK.Widgets": {
-        "type": "Transitive",
-        "resolved": "2.0.2-experimental",
-        "contentHash": "+Trk3vVSlWxBWomjpUjwy5aOowkLHr2m7o7pVn58a03O2e46joBM3WdIGon/ns+BMKPow7knCS6ne6OBWGlVZg==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental"
-        }
-      },
-      "Microsoft.WindowsAppSDK.WinUI": {
-        "type": "Transitive",
-        "resolved": "2.0.3-experimental",
-        "contentHash": "OuvJXiPEOqBRlai79qi8f35JK/MfvsaIBGoIMNOA5pZznigPezR1XHjwrF1lWMDR3WwJV9Q/rnKWcWfXYw24/Q==",
-        "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.3405.78",
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental",
-          "Microsoft.WindowsAppSDK.Foundation": "2.0.8-experimental",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "2.0.3-experimental"
-        }
-      }
-    },
-    "native,Version=v0.0/win": {
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3405.78",
-        "contentHash": "ceiIKuPHnzOf5CUv9nGpIBx0CWCCMWcBdv05QuonmUnpPtm6XDyAh6osgvin7MTpVD5O0+NbS5ts/WU9sgXgvA=="
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "2.0.8-experimental",
-        "contentHash": "8z2LKsnccAJ2RaXmLNZb7JLrSsX6Ud2nlL3Rz6YO4i1iFu9zYEuIdxz6cxsc/+ZSC8bGSQR8O/4k8NIY+qeXYA==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "2.0.3-experimental"
-        }
-      }
-    },
-    "native,Version=v0.0/win-arm64": {
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3405.78",
-        "contentHash": "ceiIKuPHnzOf5CUv9nGpIBx0CWCCMWcBdv05QuonmUnpPtm6XDyAh6osgvin7MTpVD5O0+NbS5ts/WU9sgXgvA=="
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "2.0.8-experimental",
-        "contentHash": "8z2LKsnccAJ2RaXmLNZb7JLrSsX6Ud2nlL3Rz6YO4i1iFu9zYEuIdxz6cxsc/+ZSC8bGSQR8O/4k8NIY+qeXYA==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "2.0.3-experimental"
-        }
-      }
-    },
-    "native,Version=v0.0/win-x64": {
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3405.78",
-        "contentHash": "ceiIKuPHnzOf5CUv9nGpIBx0CWCCMWcBdv05QuonmUnpPtm6XDyAh6osgvin7MTpVD5O0+NbS5ts/WU9sgXgvA=="
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "2.0.8-experimental",
-        "contentHash": "8z2LKsnccAJ2RaXmLNZb7JLrSsX6Ud2nlL3Rz6YO4i1iFu9zYEuIdxz6cxsc/+ZSC8bGSQR8O/4k8NIY+qeXYA==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "2.0.3-experimental"
-        }
-      }
-    },
-    "native,Version=v0.0/win-x86": {
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3405.78",
-        "contentHash": "ceiIKuPHnzOf5CUv9nGpIBx0CWCCMWcBdv05QuonmUnpPtm6XDyAh6osgvin7MTpVD5O0+NbS5ts/WU9sgXgvA=="
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "2.0.8-experimental",
-        "contentHash": "8z2LKsnccAJ2RaXmLNZb7JLrSsX6Ud2nlL3Rz6YO4i1iFu9zYEuIdxz6cxsc/+ZSC8bGSQR8O/4k8NIY+qeXYA==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "2.0.0-experimental",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "2.0.3-experimental"
-        }
-      }
-    }
-  }
-}
\ No newline at end of file
diff --git a/vnext/Microsoft.ReactNative.Cxx.UnitTests/packages.lock.json b/vnext/Microsoft.ReactNative.Cxx.UnitTests/packages.lock.json
deleted file mode 100644
index 3077a54470f..00000000000
--- a/vnext/Microsoft.ReactNative.Cxx.UnitTests/packages.lock.json
+++ /dev/null
@@ -1,194 +0,0 @@
-{
-  "version": 1,
-  "dependencies": {
-    "native,Version=v0.0": {
-      "Microsoft.googletest.v140.windesktop.msvcstl.static.rt-dyn": {
-        "type": "Direct",
-        "requested": "[1.8.1.7, )",
-        "resolved": "1.8.1.7",
-        "contentHash": "FxNwT4YpsGdqforqFSTGc5f/e+qfRJ+1wf5G1w0nEEkT5pr5M95E5+fOuswpPUGXPZIXM+M7BSVGnCRcQZjomA=="
-      },
-      "Microsoft.Windows.CppWinRT": {
-        "type": "Direct",
-        "requested": "[2.0.230706.1, )",
-        "resolved": "2.0.230706.1",
-        "contentHash": "l0D7oCw/5X+xIKHqZTi62TtV+1qeSz7KVluNFdrJ9hXsst4ghvqQ/Yhura7JqRdZWBXAuDS0G0KwALptdoxweQ=="
-      },
-      "Microsoft.WindowsAppSDK": {
-        "type": "Direct",
-        "requested": "[1.8.260209005, )",
-        "resolved": "1.8.260209005",
-        "contentHash": "AGHOiZcrDrpaxpHfEFKlI8MVnibfbSixI5DlbU6ozP/9dyWN5FkTFowg+dEOnaFRCnOzTSAjBQ1HuS4lAO+aMQ==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.AI": "[1.8.47]",
-          "Microsoft.WindowsAppSDK.Base": "[1.8.251216001]",
-          "Microsoft.WindowsAppSDK.DWrite": "[1.8.25122902]",
-          "Microsoft.WindowsAppSDK.Foundation": "[1.8.260203002]",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "[1.8.260125001]",
-          "Microsoft.WindowsAppSDK.ML": "[1.8.2124]",
-          "Microsoft.WindowsAppSDK.Runtime": "[1.8.260209005]",
-          "Microsoft.WindowsAppSDK.Widgets": "[1.8.251231004]",
-          "Microsoft.WindowsAppSDK.WinUI": "[1.8.260204000]"
-        }
-      },
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3179.45",
-        "contentHash": "3pokSH5CnN0G6rGhGFo1y87inxYhNxBQ2Vdf0wlvBj99KHxQJormjDACmqRnFeUsmuNFIhWwfAL1ztq7wD5qRA=="
-      },
-      "Microsoft.Windows.SDK.BuildTools": {
-        "type": "Transitive",
-        "resolved": "10.0.26100.4654",
-        "contentHash": "2mgcOlj/t2RfSyyw+pVESfO+Tk1RkfQzto9Vrq42M1lUQIfQEwbi8QLha9GXWIOj+TFzeHIEJckIoF25mgiM8A=="
-      },
-      "Microsoft.Windows.SDK.BuildTools.MSIX": {
-        "type": "Transitive",
-        "resolved": "1.7.20250829.1",
-        "contentHash": "IMdvRmCIZnBS5GkYnv0po1bcx6U1OF39pqA4TphQ9evDzpCRoSE19/PkDvlUNNrBavTsLIEJgd/TAIFner75ow=="
-      },
-      "Microsoft.WindowsAppSDK.AI": {
-        "type": "Transitive",
-        "resolved": "1.8.47",
-        "contentHash": "9il8KT8WR4T826hnm3M/USZTkPtVXFGE0IztmE1l7H9DPYsa3QHEUgGHFHQg88fsMjdr3vhyMvs23AB+1IYF1w==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001",
-          "Microsoft.WindowsAppSDK.Foundation": "1.8.260126001"
-        }
-      },
-      "Microsoft.WindowsAppSDK.Base": {
-        "type": "Transitive",
-        "resolved": "1.8.251216001",
-        "contentHash": "PS1wriuFknz3W2F2P/e6RvOTM35w89Lsj/f0QmUEPrJjKnc+jM0JLX1vfdytI14y1gNRUTm9uclwP0aH/SVU5w==",
-        "dependencies": {
-          "Microsoft.Windows.SDK.BuildTools": "10.0.26100.4654",
-          "Microsoft.Windows.SDK.BuildTools.MSIX": "1.7.20250829.1"
-        }
-      },
-      "Microsoft.WindowsAppSDK.DWrite": {
-        "type": "Transitive",
-        "resolved": "1.8.25122902",
-        "contentHash": "zFNn07i7Cyz62Y8FnPQAyzeZK7ww3m9t42i9pzy4C04pNbyUDQ4fG7pB6VSh6n4EyFuYtuFQuDzt4mKmXFrkrg==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001"
-        }
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "1.8.260203002",
-        "contentHash": "eKQ/prWq98mW7+E+ffot47iZNbDnq/NVN9R9Gi8vmoU/3Ka6zNNivxdICXh6j7g6REFPCV9530/nQYQC0L3fwg==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "1.8.260125001"
-        }
-      },
-      "Microsoft.WindowsAppSDK.InteractiveExperiences": {
-        "type": "Transitive",
-        "resolved": "1.8.260125001",
-        "contentHash": "CTGFd1zhIDbnOltZ6piPvpNXFR1OaNyW3vHvhaILzpGziAgj5DPuVnU3PUp1p5iOBd382FLCBVM6nEPyu/LCOA==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001"
-        }
-      },
-      "Microsoft.WindowsAppSDK.ML": {
-        "type": "Transitive",
-        "resolved": "1.8.2124",
-        "contentHash": "l7ZptLbvOWHEJgxZtCQhUzDNCakNcqSJyAa7DNXBLKxGIUMDqq9LnWyYRZZFNQwN7hRfDAR8fEAblP1UHYHGgw==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001",
-          "Microsoft.WindowsAppSDK.Foundation": "1.8.260126001"
-        }
-      },
-      "Microsoft.WindowsAppSDK.Runtime": {
-        "type": "Transitive",
-        "resolved": "1.8.260209005",
-        "contentHash": "aZjMu/glUGjzACowzzhj9drn/Ddfp1yA+f7CFXpkiSk6iZ2x32vhKfcqT64RpJ6R+Dj1hl9/79aXFhIavYNj9g==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001"
-        }
-      },
-      "Microsoft.WindowsAppSDK.Widgets": {
-        "type": "Transitive",
-        "resolved": "1.8.251231004",
-        "contentHash": "bIWqQYR8DCoB1SoPOMil5AtgtkTn438wJTdpsHgyO/6o7Eh7PMP5BzrR0KbDsFqy+4LhPWQ4vtwko5k93fECcA==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001"
-        }
-      },
-      "Microsoft.WindowsAppSDK.WinUI": {
-        "type": "Transitive",
-        "resolved": "1.8.260204000",
-        "contentHash": "DSpA01+iPXwky4O1uZCrdClSi2aRIYTIhmsTeC1EsJmWBFpSirwNAg4EGHejijV6u4ZVkTdyv3px0Y2P3fp72Q==",
-        "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.3179.45",
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001",
-          "Microsoft.WindowsAppSDK.Foundation": "1.8.260203002",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "1.8.260125001"
-        }
-      }
-    },
-    "native,Version=v0.0/win": {
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3179.45",
-        "contentHash": "3pokSH5CnN0G6rGhGFo1y87inxYhNxBQ2Vdf0wlvBj99KHxQJormjDACmqRnFeUsmuNFIhWwfAL1ztq7wD5qRA=="
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "1.8.260203002",
-        "contentHash": "eKQ/prWq98mW7+E+ffot47iZNbDnq/NVN9R9Gi8vmoU/3Ka6zNNivxdICXh6j7g6REFPCV9530/nQYQC0L3fwg==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "1.8.260125001"
-        }
-      }
-    },
-    "native,Version=v0.0/win-arm64": {
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3179.45",
-        "contentHash": "3pokSH5CnN0G6rGhGFo1y87inxYhNxBQ2Vdf0wlvBj99KHxQJormjDACmqRnFeUsmuNFIhWwfAL1ztq7wD5qRA=="
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "1.8.260203002",
-        "contentHash": "eKQ/prWq98mW7+E+ffot47iZNbDnq/NVN9R9Gi8vmoU/3Ka6zNNivxdICXh6j7g6REFPCV9530/nQYQC0L3fwg==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "1.8.260125001"
-        }
-      }
-    },
-    "native,Version=v0.0/win-x64": {
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3179.45",
-        "contentHash": "3pokSH5CnN0G6rGhGFo1y87inxYhNxBQ2Vdf0wlvBj99KHxQJormjDACmqRnFeUsmuNFIhWwfAL1ztq7wD5qRA=="
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "1.8.260203002",
-        "contentHash": "eKQ/prWq98mW7+E+ffot47iZNbDnq/NVN9R9Gi8vmoU/3Ka6zNNivxdICXh6j7g6REFPCV9530/nQYQC0L3fwg==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "1.8.260125001"
-        }
-      }
-    },
-    "native,Version=v0.0/win-x86": {
-      "Microsoft.Web.WebView2": {
-        "type": "Transitive",
-        "resolved": "1.0.3179.45",
-        "contentHash": "3pokSH5CnN0G6rGhGFo1y87inxYhNxBQ2Vdf0wlvBj99KHxQJormjDACmqRnFeUsmuNFIhWwfAL1ztq7wD5qRA=="
-      },
-      "Microsoft.WindowsAppSDK.Foundation": {
-        "type": "Transitive",
-        "resolved": "1.8.260203002",
-        "contentHash": "eKQ/prWq98mW7+E+ffot47iZNbDnq/NVN9R9Gi8vmoU/3Ka6zNNivxdICXh6j7g6REFPCV9530/nQYQC0L3fwg==",
-        "dependencies": {
-          "Microsoft.WindowsAppSDK.Base": "1.8.251216001",
-          "Microsoft.WindowsAppSDK.InteractiveExperiences": "1.8.260125001"
-        }
-      }
-    }
-  }
-}
\ No newline at end of file
diff --git a/vnext/just-task.js b/vnext/just-task.js
index e3fb44c76b1..39ad87cae56 100644
--- a/vnext/just-task.js
+++ b/vnext/just-task.js
@@ -44,11 +44,34 @@ function codegen(test) {
   );
 }
 
+function getGlobalNuGetPackagesFolder() {
+  if (process.env.NUGET_PACKAGES) {
+    return process.env.NUGET_PACKAGES;
+  }
+  try {
+    const output = execSync('nuget locals global-packages -list', {
+      encoding: 'utf8',
+    });
+    const match = output.match(/global-packages:\s*(.+)/i);
+    if (match) {
+      return match[1].trim();
+    }
+  } catch {}
+  return path.join(require('os').homedir(), '.nuget', 'packages');
+}
+
 function layoutMSRNCxx() {
   if (require('os').platform() === 'win32') {
-    const powershell = `${process.env.SystemRoot}\\System32\\WindowsPowerShell\\v1.0\\powershell.exe`;
+    const powershell = path.join(
+      getGlobalNuGetPackagesFolder(),
+      'PowerShell.7.6.1',
+      'tools',
+      'net8.0',
+      'any',
+      'pwsh.exe',
+    );
     execSync(
-      `${powershell} -NoProfile .\\Scripts\\Tfs\\Layout-MSRN-Headers.ps1 -GenerateLocalCxx`,
+      `"${powershell}" -NoProfile .\\Scripts\\Tfs\\Layout-MSRN-Headers.ps1 -GenerateLocalCxx`,
       {
         env: process.env,
       },
@@ -84,12 +107,23 @@ registerNuGetRestoreTask({
   scriptArguments: ['-SkipLockDeletion'],
 });
 
+function installNuGetPackagesTask() {
+  const globalPackages = getGlobalNuGetPackagesFolder();
+  execSync(
+    `nuget install PowerShell -Version 7.6.1 -OutputDirectory "${globalPackages}"`,
+    {env: process.env},
+  );
+}
+
+task('installNuGetPackages', installNuGetPackagesTask);
+
 task(
   'build',
   series(
     condition('clean', () => argv().clean),
     'copyRNLibraries',
     'copyReadmeAndLicenseFromRoot',
+    'installNuGetPackages',
     'layoutMSRNCxx',
     'compileTsPlatformOverrides',
     'restoreNuGetPackages',