Then, I installed on my local computer another gateway that I defined as a cluster of the first gateway, it is called S442DBCA_new. I did some tests and I don't need the local gateway on my computer anymore so I uninstalled it directly from my control panel.
I also uninstalled the main one which was on my server thinking that the two gateways would be removed from my Power BI space.
Unfortunately my main gateway is still in my Power BI app:
and when I click on the 3 little dots then Delete I get the error message :
A problem has occurred
We were not able to delete this gateway because it is the main gateway within a cluster that has other gateway instances. Delete the other gateway instances in this cluster before you delete the main gateway.
I did several searches and saw that it was possible to do this in PowerShell (https://community.powerbi.com/t5/Issues/Cannot-remove-Gateway-Cluster-in-PowerBi-Service-when-the/id...) unfortunately my server's version of PowerShell is too old and I can't update it.
Is there any other way to remove this gateway and this instance of gateway from Power BI? Knowing that both are uninstalled and therefore inaccessible.