Fix Checking Media Fail during Windows startup. Check boot order, SSD detection, UEFI mode, network boot, and data-safe repair options.

The message usually means the PC tried to boot from PXE/network because it could not find a working Windows boot device. The disk may be missing from BIOS, the boot order may be wrong, or the boot files may be damaged.
Qiling tools give you a visual way to review the disk state, protect files, and confirm risky operations before Windows repair, formatting, resizing, or cloning changes are applied.
Step 1. Open Qiling Backup and choose a system or disk backup before changing boot settings, partitions, or repair options.

Step 2. Save the image to an external drive with enough free space, then verify the backup task summary.
Step 3. Click Proceed to create the backup, and keep the backup drive disconnected after the job finishes.
Start with the Windows checks that match your symptom, protect important data before formatting or repartitioning, and use the Qiling workflow when you need a clearer, safer way to repair the disk or move data.