2 problems

Hello everybody.
I have two problems of installing CIS.

First is that I have not enough disk space on C and I changed the path of installing CIS to D, but comodo still tried to be installed in C. The second problem is that this wrongly installation, reduced about 200MB of disk space of C. How can I clean that??


Help me please.

remove your old programs from PC (especially other AV Product ) and use a cleaning-tweaking tool to clean all PC
delete CIS extensions from C, D and regedit
after all install CIS