Go to https://www.ui.com/download/unifi/unifi-cloud-key-gen2/default/unifi-network-controller-51423-windows and download the exe file

Create a shared mailbox or use an existing email like clientname.int@tasprovider.com
go to https://account.ui.com/ and Create a UI Account

Go to your email and Verify the account.

Open the "Unifi" icon on the desktop and click on "Launch a Browser to Manage the Network"






Download and update the controller.

Close the UniFi Controller, and browser and run the upgrade. (most likely you have to download and install jdk-11.0.18+10)
Open the "Unifi" icon on the desktop and click on "Launch a Browser to Manage the Network"

Click to Update

Make sure it is at 2.4 GHz and 5GHz is not selected
For Guest select Guest Hotspot.