How to delete a previous joined ise node from Cisco ISE Node?

[Jason2005]

I did join ise1 as a join point on Cisco ISE GUI, and then deleted it, but now I want to rejoin it, but an error message showed up telling me that :  

"Resource with this name is already configured in DataBase."

======> How to definitly delete it ? and rejoin it as a new Node ? 

Upgrade Offer for Cisco ISE 3.x 

Cisco Identity Services Engine (ISE) Trainings 

Re: Using Let's Encrypt Certificates with Cisco FirePower, ISE & I 

ciscoisesdk update request issue 

ISE BERG 

Cisco ISE with Microsoft Active Directory, Azure AD, and Intune 

[Aref Alsouqi]

Please try to remove ISE object from your domain controller and try to re-join it again.

[thomas]

@Jason2005 , Why are you linking to these other unrelated community articles and documents?