Well, I'm one of those people out there who accidentally forgot my Folder Lock password b'coz I haven't used the software I installed for quite a month. It's sort of my short memory loss syndrome. I was struggling for 5 days trying to remember that brilliant password I created that was somewhat stuck on whichever part of my miniature size brain.
Just download any full version copy of folder lock with similar version of the one your using, example Folder lock v5.7.5 or something like that. Then just Install it. Then let it run automatically after the installation. You will be prompt to login using a new folder lock user id and folder lock registration key. You can use this
FolderLock User ID: NewSoft15805
FolderLock Registration Key: 221281703
After you have entered the information above, follow the programs procedures until registration is finish. Start folder lock and when the program ask for the password, use the folder Registration Key stated above.