Will gamestop repair my xbox 360E,,, power supply failure not power cord, where the power cord plugs into the back of the 360

I think they will send it in for repair

Microsoft no longer supports xbox 360 . So it can not be sent off. U can buy a pre owned one for cheaper than repair.

You have to send it to Microsoft

I belive that they send them in for repairs off-site, but if it would be best to call and ask a sales associate.

They may send it in for repair. Not guaranteed.