From 6a0598fa09ee26d5b6dfbf84c54beaf00b62ec5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Fitt?=
 <36852431+rafalfitt@users.noreply.github.com>
Date: Fri, 16 Sep 2022 23:22:37 +0200
Subject: [PATCH] Update dg-readiness-tool.md

try+catch is needed to handle "Variable is currently undefined." error on some older computers

Confirm-SecureBootUEFI : Variable is currently undefined: 0xC0000100
At line:1 char:1
+ Confirm-SecureBootUEFI
+ ~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: (Microsoft.Secur...BootUefiCommand:ConfirmSecureBootUefiCommand) [C
   onfirm-SecureBootUEFI], StatusException
    + FullyQualifiedErrorId : GetFWVarFailed,Microsoft.SecureBoot.Commands.ConfirmSecureBootUefiCommand

https://docs.microsoft.com/en-us/powershell/module/secureboot/get-securebootuefi?view=windowsserver2022-ps
---
 .../credential-guard/dg-readiness-tool.md                 | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/windows/security/identity-protection/credential-guard/dg-readiness-tool.md b/windows/security/identity-protection/credential-guard/dg-readiness-tool.md
index 603dcc1d9c..e1e0c996fa 100644
--- a/windows/security/identity-protection/credential-guard/dg-readiness-tool.md
+++ b/windows/security/identity-protection/credential-guard/dg-readiness-tool.md
@@ -796,7 +796,13 @@ function CheckOSArchitecture
 
 function CheckSecureBootState
 {
-    $_secureBoot = Confirm-SecureBootUEFI
+    try { 
+        $_secureBoot = Confirm-SecureBootUEFI
+    }
+    catch
+    {
+        $_secureBoot = $false
+    }
     Log $_secureBoot
     if($_secureBoot)
     {