Resolved Plesk not working after install on fresh OS install

[ds34]

Hi, after installing Plesk Obsidian using the installer from Plesk Web Installer Plesk just doesn't work properly.

I can access the static "Web Serber's Default Page" site but when I try to log in via port 8443 the browser just displays "Unable to connect".
I have tried reinstalling Windows several times.
I have tried the Repair Plesk installation option in the Reconfiguration programm, but it didn't work.
I noticed that the PleskStartu service wasn't running. I started it manually and I was able to start the Configuration website on port 8443 using the Services Monitor.
I was not able to get it working again. it always showed this error when I tried to start i:

https://imgur.com/a/oEPPNcb

Server 2019, LTSC, Datacenter w/ Desktop Experience

 

[IgorG]

First of all, make sure that your Windows server meets all the requirements Software Requirements for Plesk Obsidian
Then try to install Plesk on the clean Windows server with the following method: Installing Plesk for Windows Using Installer Console

 

[ds34]

Thanks for your reply, but I already got it fixed with a member of Plesk's support team. Extremely helpful.

The issue was, that the installer wasn't running as administrator