diff --git a/bucket/pdf24-creator-np.json b/bucket/pdf24-creator-np.json
index b196f58d1..89522f214 100644
--- a/bucket/pdf24-creator-np.json
+++ b/bucket/pdf24-creator-np.json
@@ -20,15 +20,13 @@
         "if (!(is_admin)) { error \"$app requires admin rights to $cmd\"; break }",
         "Write-Host \"Please wait and don't cancel the script...\" -F 'Yellow'",
         "Start-Process 'msiexec' -Wait -Verb 'RunAs' -WindowStyle 'Hidden' -ArgumentList @('/i', \"$dir\\setup.msi_\", '/qn', \"INSTALLDIR=$dir\", \"TARGETDIR=$dir\")",
-        "Stop-Service -Name 'pdf24' -Force -ErrorAction 'SilentlyContinue'; Stop-Process -Name 'pdf24' -Force -ErrorAction 'SilentlyContinue'",
-        "Stop-Process -Name 'explorer' -Force -ErrorAction 'SilentlyContinue'; Start-Sleep -Seconds 3"
+        "Stop-Service -Name 'pdf24' -Force -ErrorAction 'SilentlyContinue'; Stop-Process -Name 'pdf24' -Force -ErrorAction 'SilentlyContinue'"
     ],
     "pre_uninstall": [
         "if (!(is_admin)) { error \"$app requires admin rights to $cmd\"; break }",
         "Stop-Service -Name 'pdf24' -Force -ErrorAction 'SilentlyContinue'; Stop-Process -Name 'pdf24' -Force -ErrorAction 'SilentlyContinue'",
         "Write-Host \"Please wait and don't cancel the script...\" -F 'Yellow'",
-        "Start-Process 'msiexec' -Wait -Verb 'RunAs' -WindowStyle 'Hidden' -ArgumentList @('/x', \"$dir\\setup.msi_\", '/qn')",
-        "Stop-Process -Name 'explorer' -Force -ErrorAction 'SilentlyContinue'; Start-Sleep -Seconds 3"
+        "Start-Process 'msiexec' -Wait -Verb 'RunAs' -WindowStyle 'Hidden' -ArgumentList @('/x', \"$dir\\setup.msi_\", '/qn')"
     ],
     "checkver": "Version\\s([\\d.]+)",
     "autoupdate": {