diff --git a/images/win/scripts/Installers/Install-RootCA.ps1 b/images/win/scripts/Installers/Install-RootCA.ps1
index 824b2b465..cd3a46425 100644
--- a/images/win/scripts/Installers/Install-RootCA.ps1
+++ b/images/win/scripts/Installers/Install-RootCA.ps1
@@ -2,23 +2,21 @@
 $sstFile = "$env:TEMP\roots.sst"
 # Generate SST from Windows Update
 $result = certutil.exe -generateSSTFromWU $sstFile
-if ($LASTEXITCODE -eq 0) {
-    # Dump certificates
-    $result = certutil.exe -dump $sstFile
-    if ($LASTEXITCODE -eq 0) {
-        # Import Root CA into "Trusted Root Certification Authority"
-        try {
-            Import-Certificate -FilePath $sstFile -CertStoreLocation Cert:\LocalMachine\Root
-        } catch {
-            Write-Host "[Error]: failed to import ROOT CA`n$_"
-        }
-    }
-    else {
-        Write-Host "[Error]: failed to dump $sstFile sst file`n$result"
-    }
-}
-else {
+if ($LASTEXITCODE -ne 0) {
     Write-Host "[Error]: failed to generate $sstFile sst file`n$result"
+    exit $LASTEXITCODE
+}
+
+$result = certutil.exe -dump $sstFile
+if ($LASTEXITCODE -ne 0) {
+    Write-Host "[Error]: failed to dump $sstFile sst file`n$result"
+    exit $LASTEXITCODE
+}
+
+try {
+    Import-Certificate -FilePath $sstFile -CertStoreLocation Cert:\LocalMachine\Root
+} catch {
+    Write-Host "[Error]: failed to import ROOT CA`n$_"
+    exit 1
 }
 
-exit $LASTEXITCODE
\ No newline at end of file