How to update OH2.1 to OH2.2 on windows if OH2.1 runs as a service?

I ask this because I had some problems with update form OH2.0 to OH2.1.

As written here:

I should do:
start powershell as admin
cd C:\openHAB
. .\runtime\bin\update.ps1
Update-openHAB -OHVersion 2.2.0

Some questions:

Does it make sense to add the douc about starting as a service to the global OH2.2 docu. I think it is only available under the link above for update OH2.0 to 2.1 not for a fresh installation of OH2.2.


Beyond that I don’t run on Windows so can’t answer the rest of the questions.