diff --git a/playbook/shopfloor-setup/gea-shopfloor-cmm/scripts/Install-goCMMSettings.ps1 b/playbook/shopfloor-setup/gea-shopfloor-cmm/scripts/Install-goCMMSettings.ps1
index e7e8a3a..a08cc09 100644
--- a/playbook/shopfloor-setup/gea-shopfloor-cmm/scripts/Install-goCMMSettings.ps1
+++ b/playbook/shopfloor-setup/gea-shopfloor-cmm/scripts/Install-goCMMSettings.ps1
@@ -108,6 +108,15 @@ if (Test-Path $reg) {
     if (-not (Test-Path $goCmmKey)) { New-Item -Path $goCmmKey -Force | Out-Null }
 }
 
+# The per-bay backups were taken under goCMM 1.1, so goCMM.reg carries
+# "Installation Directory" = the 1.1 folder. goCMM 2.x never reads it, but its
+# installer treats it as "1.1 still installed" and shows a dialog /S cannot
+# answer, which hangs GE-Enforce. Drop it unless 1.1 really is installed here.
+if (-not (Test-Path 'C:\Program Files (x86)\General Electric\goCMM\goCMM.exe')) {
+    Remove-ItemProperty -Path $goCmmKey -Name 'Installation Directory' -ErrorAction SilentlyContinue
+    Log "Removed 1.1 'Installation Directory' value (goCMM 1.1 not installed)"
+}
+
 # --- Optional per-bay Selected Part Group override (use when restoring to a different bay) ---
 if ($SelectedPartGroup) {
     if (-not (Test-Path $goCmmKey)) { New-Item -Path $goCmmKey -Force | Out-Null }