diff --git a/main-menu.ps1 b/main-menu.ps1
index f7a88f8..6e8cd16 100644
--- a/main-menu.ps1
+++ b/main-menu.ps1
@@ -321,33 +321,25 @@ function Install-MedewerkersApps {
         Write-ColorText "[$currentApp/$totalApps] Installeer $app..." "Cyan"
         
         try {
-            # Capture both output and error streams
-            $outputFile = "$env:TEMP\winget_$(Get-Random).txt"
-            $errorFile = "$env:TEMP\winget_error_$(Get-Random).txt"
+            # Capture output using Invoke-Expression to properly capture stdout
+            $output = & winget install --id $app -e --silent --accept-package-agreements --accept-source-agreements --source winget --scope machine 2>&1
+            $exitCode = $LASTEXITCODE
+            $outputString = $output | Out-String
             
-            $process = Start-Process -NoNewWindow -Wait -FilePath "winget" -ArgumentList "install --id $app -e --silent --accept-package-agreements --accept-source-agreements --source winget --scope machine" -PassThru -RedirectStandardOutput $outputFile -RedirectStandardError $errorFile
-            $exitCode = $process.ExitCode
-            
-            # Read output to determine actual result
-            $outputContent = ""
-            $errorContent = ""
-            if (Test-Path $outputFile) {
-                $outputContent = Get-Content $outputFile -Raw -ErrorAction SilentlyContinue
-                Remove-Item $outputFile -Force -ErrorAction SilentlyContinue
-            }
-            if (Test-Path $errorFile) {
-                $errorContent = Get-Content $errorFile -Raw -ErrorAction SilentlyContinue
-                Remove-Item $errorFile -Force -ErrorAction SilentlyContinue
-            }
-            
-            # Check for success indicators in output
-            $combinedOutput = "$outputContent $errorContent"
-            if ($combinedOutput -match "Successfully installed" -or $exitCode -eq 0) {
+            # Determine result based on output content and exit code
+            if ($exitCode -eq 0 -or $outputString -match "Successfully installed|Successfully verified") {
                 Write-ColorText "✓ $app succesvol geïnstalleerd" "Green"
-            } elseif ($combinedOutput -match "already installed|No applicable|No available upgrade" -or ($null -ne $exitCode -and $exitCode -ne 0)) {
+            } elseif ($outputString -match "already installed|existing package|No applicable upgrade|No available upgrade|Found an existing package|Trying to upgrade") {
+                Write-ColorText "✓ $app is al geïnstalleerd (geen actie nodig)" "Yellow"
+            } elseif ($outputString -match "No upgrade available|No newer package versions") {
                 Write-ColorText "✓ $app is al geïnstalleerd (geen actie nodig)" "Yellow"
             } else {
-                Write-ColorText "✗ Fout bij installatie van $app" "Red"
+                # Show error with exit code for debugging
+                Write-ColorText "✗ Fout bij installatie van $app (Exit code: $exitCode)" "Red"
+                if ($outputString) {
+                    $shortOutput = $outputString.Substring(0, [Math]::Min(200, $outputString.Length))
+                    Write-ColorText "  Output: $shortOutput..." "Gray"
+                }
             }
         } catch {
             Write-ColorText "✗ Fout bij installatie van $app" "Red"
@@ -424,33 +416,25 @@ function Install-GastenApps {
         Write-ColorText "[$currentApp/$totalApps] Installeer $app..." "Cyan"
         
         try {
-            # Capture both output and error streams
-            $outputFile = "$env:TEMP\winget_$(Get-Random).txt"
-            $errorFile = "$env:TEMP\winget_error_$(Get-Random).txt"
+            # Capture output using Invoke-Expression to properly capture stdout
+            $output = & winget install --id $app -e --silent --accept-package-agreements --accept-source-agreements --source winget --scope machine 2>&1
+            $exitCode = $LASTEXITCODE
+            $outputString = $output | Out-String
             
-            $process = Start-Process -NoNewWindow -Wait -FilePath "winget" -ArgumentList "install --id $app -e --silent --accept-package-agreements --accept-source-agreements --source winget --scope machine" -PassThru -RedirectStandardOutput $outputFile -RedirectStandardError $errorFile
-            $exitCode = $process.ExitCode
-            
-            # Read output to determine actual result
-            $outputContent = ""
-            $errorContent = ""
-            if (Test-Path $outputFile) {
-                $outputContent = Get-Content $outputFile -Raw -ErrorAction SilentlyContinue
-                Remove-Item $outputFile -Force -ErrorAction SilentlyContinue
-            }
-            if (Test-Path $errorFile) {
-                $errorContent = Get-Content $errorFile -Raw -ErrorAction SilentlyContinue
-                Remove-Item $errorFile -Force -ErrorAction SilentlyContinue
-            }
-            
-            # Check for success indicators in output
-            $combinedOutput = "$outputContent $errorContent"
-            if ($combinedOutput -match "Successfully installed" -or $exitCode -eq 0) {
+            # Determine result based on output content and exit code
+            if ($exitCode -eq 0 -or $outputString -match "Successfully installed|Successfully verified") {
                 Write-ColorText "✓ $app succesvol geïnstalleerd" "Green"
-            } elseif ($combinedOutput -match "already installed|No applicable|No available upgrade" -or ($null -ne $exitCode -and $exitCode -ne 0)) {
+            } elseif ($outputString -match "already installed|existing package|No applicable upgrade|No available upgrade|Found an existing package|Trying to upgrade") {
+                Write-ColorText "✓ $app is al geïnstalleerd (geen actie nodig)" "Yellow"
+            } elseif ($outputString -match "No upgrade available|No newer package versions") {
                 Write-ColorText "✓ $app is al geïnstalleerd (geen actie nodig)" "Yellow"
             } else {
-                Write-ColorText "✗ Fout bij installatie van $app" "Red"
+                # Show error with exit code for debugging
+                Write-ColorText "✗ Fout bij installatie van $app (Exit code: $exitCode)" "Red"
+                if ($outputString) {
+                    $shortOutput = $outputString.Substring(0, [Math]::Min(200, $outputString.Length))
+                    Write-ColorText "  Output: $shortOutput..." "Gray"
+                }
             }
         } catch {
             Write-ColorText "✗ Fout bij installatie van $app" "Red"