restarting when choosing Projector only on windows 7

[sammm]

Hello, I've came across a problem where one of our clients chooses projector only so he can have his desktop on a monitor rather than his laptop, when he does this the laptop restarts then asks for admin creds... it's a sony vio laptop, i can't see anything online about this, and his is the only mechine that does this.

Regards

 

[theog]

Check the BIOS is set to both.