I know this is a year old thread but I just found it as I was pounding my head against brick wall trying to figure out how to do the same thing. I got it done.
First, the Corel Auto-Preserve folders are hidden, so you have to remove the hidden attribute. To do that, open up a file window for the highest level directory that contains all your PSP photo files and the auto preserve folders you want to delete. In the file window do a search for Corel Auto-Protect. All the folders should show up. Select all the folders, right click on them and then click on Properties. Uncheck the hidden attri