Unbale to uninstall NBU 7.5 Client

Hi

I am unable to uninstall NBU client 7.5 from a windows server 2008 machine. I am not getting any error messages while unistalling.

The uninstaller just pops up and then goes out. I had 7.5.0.6 patch installed as well. So first I uninstalled the patch sucessfully and then while trying to uninstall 7.5 it is not going. Any help will be appreciated.

PFA uninstallation logs obtained from %allusersprofie% folder.