Install / Uninstall via PowerShell

Hi Power BI Community,

I've been tasked to deploy Power BI to an undefined amount of users. I have an install script which works well

Start-Process -FilePath msiexec.exe -ArgumentList /i, C:\Documents\PBI\Install\PBIDesktop_x64.msi, /passive, ACCEPT_EULA=1 -Wait

I've looked up forum after forum, and I'm struggling to automate de-installation. Using .msi's switch /X, I need the Product Code for Power BI to uninstall. The product code below was from here

Start-Process -FilePath msiexec.exe -ArgumentList /X{6BD53F08-57BA-4CF1-94B0-F08151E41383}, /qn, /norestart -Wait

Are there any glaring/obvious omissions/mistakes on my part?

Thanks,

Ronan