If you have errors when first opening FL Studio (data can't be saved or created) saving projects, recordings, exporting, dragging sample slices, at FL Studio start-up or any action where data may be saved to your User data folder. Try these steps in the order below until the problem is fixed ...
If you have AVG or Avast installed, please have a look into this article: Cannot create file / Access is denied / Unable to write to / Couldn't create the file / Please check that no other application is currently using it.
For more information on what data is saved to the User data folder see the manual here.
Image-Line Support Team.