I have the same problem but under XP SP3. Installed without problem under W7-64 !
Under XP the installer is starded and works for about 10 minuts (with I/O writes in Task Manager),
but nothing appears on the screen. At the end of this, nothing is installed et no error reported
anyware. I Also have try in safe mode, but same result.
Manual driver installation works OK, but no way tio install CCC or WDM
Re-install of prévious version works fine.
I dont understand where is the problem.
Any help welcome
Olivier