I'm closing this as the tech company turned around and found a hardware issue in the end. Their test showed the CPU and fan had died due to overheating.
Hi there, I have Dell XPS laptop which was working great until the input, keyboard, keypad, touchscreen stopped while in the middle of working.    - After hard rebooting the input works again for a few minutes and then gets stuck on the login screen or beyond.   - It frequently blue screens.   - Sometimes it starts with windows automatic repair To my knowledge there were no issues or software updates that occurred right before it.   I have sent it to a repair company and they found that they input works on the BOOT menu but the USB ports do not. They believe the hardware is ok and the windows installation is corrupted. If the USB ports aren't working at BOOT we're not sure how to repair windows from a flash drive. Can someone please advise what I can do from my side? 
Dell XPS 15 laptop input not working followed by blue screens