Choose Just remove my files (faster) or Clean the drive (more thorough).

Here’s a professional and clear write-up for resetting the to factory settings (Fabrika Ayarlarına Sıfırlama).

Release the Power button but keep holding Volume Down until you see the Recovery Menu .

Click Reset and wait. The tablet will restart several times and reinstall Windows. Method 2: Factory Reset Using Recovery Partition (If Windows Won’t Boot) If the tablet won’t start normally, use the built-in recovery environment.

Below are two reliable methods to reset your tablet to its original factory state. This is the easiest method if you can still boot into Windows.