Question 1

What is PSWindowsUpdate and how do I install it?

Accepted Answer

PSWindowsUpdate is a PowerShell module that provides comprehensive Windows Update management. Install it with: Install-Module -Name PSWindowsUpdate -Force. It supports checking for updates, installing specific KBs, managing WSUS, and scheduling reboots.

Question 2

What is the difference between usoclient and wuauclt?

Accepted Answer

usoclient is the modern Update Session Orchestrator client introduced in Windows 10, while wuauclt is the legacy Windows Update AutoUpdate Client. Use usoclient for Windows 10/11 and wuauclt for older systems. usoclient commands include StartScan, StartDownload, and StartInstall.

Question 3

How do I check Windows Update history with PowerShell?

Accepted Answer

Use Get-WUHistory from PSWindowsUpdate module, or query WMI with Get-WmiObject -Class Win32_QuickFixEngineering. You can also use Get-HotFix for installed hotfixes and systeminfo with findstr KB for a quick list of installed KBs.

Question 4

Can I uninstall Windows Updates with PowerShell?

Accepted Answer

Yes, use Remove-WindowsUpdate -KBArticleID KB5001234 from PSWindowsUpdate, or wusa.exe /uninstall /kb:5001234 /quiet. You can also use DISM: dism /online /remove-package /packagename:Package_for_KB5001234. Always create a restore point first.

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