Configuration changes not saved

Hello,
When new configuration shows thw following message:

Flash XP Configuration can not be saved.

The files are read-only or your Windows user account does not have sufficient permissions to modify the files in the FlahXP data folder.

FlashXP versión: 3.7.2 (build 1266) Beta (Registered)
OS Windows Vista

Thank you,

not a bug.
read https://oss.azurewebsites.net/forum/showthread.php?t=13120