My SP has become virtually unusable due to frequent BSOD errors. I'm getting the windows store exception I had before but also now System_service_exception and once a critical stop exception. I ran the surface troubleshooter which found nothing, but the device is doing it so frequently now I can't trust it. I'm back at uni after Christmas and will be doing a project and I can't have my SP doing this. I'm just about to call support but thought Id ask the experts here too.