Download
HijackThis, although in this case not for its primary purpose, often touted on here. ...It has some useful secondary tools.
Look for links 'Other stuff...' > 'Config' > 'Misc Tools' > 'Open Uninstall Manager'. ...There you will find a list of programs on your PC. ...Highlight the Nokia PC Suite and make a note of the
Uninstall Command on the righthand side. ...Close HijackThis and run that exact command line manually yourself, via 'Command Prompt', in 'Start' > 'All Programs' (i.e., enter command line and press 'Enter' on keyboard).
Good luck.