You should probably deactivate, uninstall, clean, and then reinstall.
To deactivate open one of the programs that remains and choose Help -> Deactivate.
Then uninstall whatever you can of what remains as you would normally uninstall programs (trashing/deleting is not normal).
You can find the Cleaner Tool thru the following...
Adobe Creative Suite Cleaner Tool
helps resolve installation problems for CS3 thru CS6 and for Creative Cloud
http://www.adobe.com/support/contact/cscleanertool.html
If you need to download to reinstall then you should be able to use the following link ig=f you still have your serial number (it is needed in any case to get things running again)... CS6 - http://helpx.adobe.com/x-productkb/policy-pricing/cs6-product-downloads.html