MyWinLocker application has no feature or way which will enable you to recover your encrypted data without the
Master Password. There is no way the encrypted files can be accessed in the form they are. If you forgot you Password Hint then I am afraid that your files will be lost forever. The software has been created in such a manner that if someone has access to the encrypted files, it has no way of decrypting them without the software and the password which is equal to a case you forget your password. Any other solution fails to exist under such conditions.
Also you won't be able to access the files if you perform a new installation because the previous files contain the password which is required for decryption and since you don't know the password, you can't do nothing about it!