Internal Storage Read Only help

A

AC Question

Hi, I have lenovo tablet... two days ago i was browsing facebook suddenly all apps started crashing... then i found out that my internal storage is set as read only automatically I dont have root and i cannot delete anything or uninstall apps they reappear after reboot
When i try deleting anything through file explorer it says task failed or cannot delete
i looks like it is read write protected :(

Things I Tried:
Factory Reset
Hard Reset
Did both of it when it reboots after factory reset i was shocked to see that nothing happened nothing changed .