Due to an initial installation problem (MSDE vs SQL 2000) in a HA setup, I need to uninstall and reinstall my second node. In a lab setting I'm having problems during the reinstallation with node 1 becoming "invalid".
Can anyone help with some steps for successfully uninstalling and reinstalling a IPCC Express node?
I think the first thing you have to do, is recover your first node. The goal is to have a clean first node (simplex).
Also take a look in the serviceability tool.
Dont't try to fix the HA if there are any issues left with your first node.