Unable to find valid target platform

One of our user is getting following error:“Unable to find valid target platform” when upgrading 8.51 FP4. I had local admin. uninstall the client and delete all lotus directories and do a fresh install. Still getting this error. Before I dive into cleaning up the registry keys, anybody ran into any issues like this? Thanx in advance…

~ Wongo

Subject: Same error here

I have uninstalled Notes completely, checked the registry entries reported by IBM to possibly cause this and also did much more registry entry cleanup and still get the error.

Link to page containing reported registry entries–this may help someone, mine didn’t have any extraneous entries:

https://www-304.ibm.com/support/docview.wss?uid=swg21454285