I have a relatively small C drive but it has been OK for Sonar Pro.  I just upgraded to Platinum and wanted to know if there was a way I could clear out all that old Sonar stuff (going back to 2011)  and then make a clean new install with most of the Cakewalk stuff on my big F drive?  All project files are backed up externally.
 
thanks Adrian

there sure is, do you have a windows back up (running windows 8 or higher ?)
or if you have an installation disk and a product key (don't forget about that)
wipe everything clean and start over. but remember...save the settings you want to keep.
pc presets, FX chain presets, plug in presets, exc, exc.
 
then install windows.
install command center to the c drive. use the options in command center to choose where you want the directory's for plug ins, loop content,exc, on platinum.

If you only want to remove all Cakewalk products and start fresh see http://www.cakewalk.com/Support/Knowledge-Base/2007013372/Clean-Install-All-Cakewalk-Software
 
If reinstalling using the Command Center make sure to enable Verbose mode and set the paths as desired on the Command Center settings pages. To get to Command Center settings click the gear in the upper right of the Command Center UI. Verbose mode will run the installers as if they were run from the command line.

Thanks Guys,
Didn't realise Commander had this verbose feature and I reckon I can fix everything now - advice much appreciated Adrian