If it's been "upgraded" recently, you can go back to previous version. Settings (the Engine Icon) has the option as "Restore to previous point" or "Restore Machine".
If 30 days has passed since you "upgraded", then it's not possible... or at least that's how I know it goes.
If 30 days has passed since you "upgraded", then it's not possible... or at least that's how I know it goes.