DB2 64 bit installation Issue

Hello,

I would appreciate if some one help me with this installation issue that I am stuck with.

I have 64bit laptop and installed 64bit DB2 V 9.7.0441. There was an installation issue and I tried to uninstall. The uninstall of DB2 Enterprise Server edition is not getting removed from Control Panel. When I try to install a 32 bit version it detects 64bit and does not allow me to install. I can't cleanly uninstall the 64bit version either. How can get my PC to clean all DB2 reference and start from fresh please?

Thank you
Moorthy