手动安装Windows更新MSU文件时提示“此更新不适用于你的计算机”问题咨询

Hey there, let's troubleshoot that frustrating "The update is not applicable to your computer" error you're hitting with KB5016623 on your Windows Server 2019 VM. Since you've confirmed the MSU file itself is correct, here are the most common fixes to try:

• Verify prerequisite updates are installed
  Cumulative updates like KB5016623 often require a specific Service Stack Update (SSU) to be installed first. For Windows Server 2019, KB5016623 depends on the July 2022 SSU (KB5015807). You can check your installed updates via Settings > Update & Security > View update history, or run winver to check your OS build number—if it's older than the build associated with KB5015807, you'll need to install that SSU first.

• Double-check the MSU matches your system architecture
  Even if you think you downloaded the right file, it's worth confirming: Windows Server 2019 has x86, x64, and ARM64 variants. Make sure the KB5016623 MSU you have corresponds to your VM's architecture (most likely x64 for server deployments).

• Repair system components with DISM
  Corrupted system files can throw off update compatibility checks. Open an elevated Command Prompt (right-click > Run as administrator) and run these commands one by one:

  DISM /Online /Cleanup-Image /CheckHealth
  DISM /Online /Cleanup-Image /ScanHealth
  DISM /Online /Cleanup-Image /RestoreHealth
  

  After the repairs finish, try installing the MSU again—you can also use the command line for more verbose feedback:

  wusa.exe "C:\path\to\KB5016623.msu" /quiet /norestart
  

• Check if the update is already installed
  Sometimes automatic updates might have already pushed KB5016623 to your VM without you noticing. Go to Control Panel > Programs > Programs and Features > View installed updates, then search for KB5016623. If it's listed there, that's why you're getting the "not applicable" message.

• Confirm your OS activation status
  Unactivated evaluation copies of Windows Server 2019 can sometimes restrict update installations. Run slmgr /xpr in Command Prompt to check if your system is properly activated.

备注：内容来源于stack exchange，提问作者VictorV