Hi, If you've used a variety of different versions of CloneCD, or have removed it permenently from your system, you might not know that a bunch of registry keys have probably been left behind. You can use these attached applications to remove all the CloneCD registry keys and give you a fresh start, or be completely done with CloneCD forever. **Remember to keep a copy of your registration code(s) in case you use this, it will remove the registration code registry keys too. This is a useful tool if you have been using CloneCD with a code/serial you don't own (i.e. pirated software). There are 2 versions: C3CU_v2b will remove everything for CloneCD version 3xx C4CU_v1 will remove everything for CloneCD v4xx Here is version 4 first!