diff --git a/images/win/scripts/Installers/Install-VS.ps1 b/images/win/scripts/Installers/Install-VS.ps1
index deefb2019..2017dbb81 100644
--- a/images/win/scripts/Installers/Install-VS.ps1
+++ b/images/win/scripts/Installers/Install-VS.ps1
@@ -32,6 +32,7 @@ if ($instanceFolders -is [array])
 }
 
 # Updating content of MachineState.json file to disable autoupdate of VSIX extensions
+$vsInstallRoot = (Get-VisualStudioInstance).InstallationPath
 $newContent = '{"Extensions":[{"Key":"1e906ff5-9da8-4091-a299-5c253c55fdc9","Value":{"ShouldAutoUpdate":false}},{"Key":"Microsoft.VisualStudio.Web.AzureFunctions","Value":{"ShouldAutoUpdate":false}}],"ShouldAutoUpdate":false,"ShouldCheckForUpdates":false}'
 Set-Content -Path "$vsInstallRoot\Common7\IDE\Extensions\MachineState.json" -Value $newContent