I used partition magic to merge some partitions together and in the process it created folders to save the content of the merged partitions. Now I want to delete these folders but even with unlocking programs such as Unlocker I wasn't able to get rid of these folders.

The message I get when trying is the following:

Cannot delete folder : Access is denied
Make sure the disk is not full or write-protected
and that the file is not currently in use.

I tried several other unlocking tools with no success, what can I do?

Thanks for any answer.