Can't reset surface rt !

[octopus82]

Hello,

I was given a surface rt whose was accidentally put a password, so I tried to make it a factory reset but I have an error message (in pic)

What do you advise me to do? thank you

 

[ZachBui]

did you try to boot into recovery mode via a usb

 

[octopus82]

How to do that thank's ?