Uninstall Netweaver ABAP 7.0 did not uninstall

Hello,

I installed the netweaver 7.0 and then ran uninstall -now the directory holding "uninstall" is gone

I tried to reinstall again but the message I get is that NSP is already installed.

What file can I remove so that the system will install once more?

What can I remove so that the system will install MAXDB again?

TIA,

Casey