Clés usb de reparation

réparer quoi exactement ?

une erreur de fichier qui enpeche mon pc de demarer

comment s'apple le fichier stp ?

ntldr et le message est le suivant:

Windows failed to start.A recent hardware or software change might be the cause.To fix the problem:
1 Insert you windows installation disc and restart your computer
2 Choose your language settings, and then click "next."
3 Click "repair you computer."
If you do not have this disk, contact you system administrator or computer manufracturer for assistance.

file: \ntldr
Status: 0xc0000225
Info: The selected entry could not be loaded because the application is missing or corrupt.