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report-failed-computers/readme.md

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+# WSUS – Failed Computers (Display.ps1)
+Generate a CSV of client machines that had Windows Update installation errors over a recent time window, by querying **WSUS event history (errors only)**. Faster and more accurate than stitching multiple daily exports. If the `UpdateServices` module isn’t present, the script uses the WSUS Admin .NET DLL directly.
+
+---
+
+## Requirements
+
+- Run on the **WSUS server**, in an **elevated** 64-bit Windows PowerShell (5.1).
+- WSUS PowerShell module `UpdateServices` (installed with WSUS/RSAT) **or** the Admin DLL:
+  `C:\Program Files\Update Services\Tools\Microsoft.UpdateServices.Administration.dll`
+- Local access to WSUS (HTTP 8530 or HTTPS 8531).
+
+---
+
+## Install
+
+1. Copy the script here: `DisplayToErrorComputer/Display.ps1`
+2. Unblock if downloaded from the internet:
+   ```powershell
+   Unblock-File .\Display.ps1
+   ```
+   
+## How to run
+Standard run (last 7 days, top 100):
+   ```powershell
+   .\Display.ps1 -Days 7 -Top 100 -Verbose
+   ```