KB0001 - PSU Uninstall Error: "The setup must update files or services..."

KB0001 - PSU Uninstall Error: "The setup must update files or services..."

When attempting to uninstall PowerShell Universal (MSI Install) from Control Panel -> Programs you receive the error:

"The setup must update files or services that cannot be updated while the system is running. If you choose to continue, a reboot will be required to complete the setup"



This is normal behavior because the PowerShell Universal service is still running. Your options here are to either:

1. Accept the prompt and reboot to continue the uninstallation
or
2. Cancel and then stop the PowerShell Universal service. You should then be able to try the uninstall again and it will complete without asking for reboot. 

    • Related Articles

    • KB0015 - Offline PSU server has slow dashboards

      Disclaimer Please be careful with changing any settings on your server around the Certificate Revocation List. You should only do this if you know what you are doing. Read the related Github articles (linked below) in their entirety. Symptom PSU ...
    • KB0011 - Are licenses different between Production, QA and Test/Development servers?

      Update January 24th, 2023 Adam recently summarized the Developer's license per below: The only real limitation on the developer license is that it cannot be accessed remotely. The server is only available on loopback when using the dev license. If ...
    • KB0013 - Moving PSU to another server

      Below are Adam's comments on this topic from August 2nd, 2022: The configuration for PowerShell Universal, including the license, is stored as PS1 files in the repository directory. https://docs.powershelluniversal.com/config/repository We recommend ...
    • IIS: HTTP Error 502.5 - ANCM Out-Of-Process Startup Failure

      Applies to: PowerShell Universal 1.4 or later When configuring PowerShell Universal to run under IIS, you may be presented with an error that states ANCM Out-Of-Process Startup Failure. This error can be presented for a variety of reasons but the ...
    • KB0021 - Unable to update Dashboard Pages in PowerShell Universal 3.6.4

      Purpose Due to an issue with the client-side application in PowerShell Universal 3.6.4, you may experience a problem updating page content. When clicking the Save button, a toast message would be shown that states that a 400 HTTP error had occurred. ...