Hello, recently updated this 4 or 5 month old Dell XPS13 with the recommended Windows 8.1 update. Since, I've been updating a few drivers as 'My Dell' recommends because it was noticeably not functioning as well as it was (trackpad stopped supporting two fingers, brightness changing itself).

Now, I opened the screen and it was blank - black screen. I had to hard reboot after nothing back from it for a while. On boot it then said it was analysing and diagnosing. Then went to 'Repairing disk errors. This may take over an hour to complete'. Since I have:-

1. I left it at least 2 hours then felt it was unusually long. I stopped the laptop and started to F12 boot.
2. Tried diagnostics, which was clear. Then thorough diagnostics, which was also clear. Hard drive reported fine.
3. I've rebooted and got to a diagnosis and then a screen which said it was 'Scanning and Repairing (C:) drive'. It got stuck at 58% and after 30-40minutes I rebooted and skipped the scan - it went to a black screen as I've seen before.

I eventually rebooted and haven't got  further with several tries around the same things.

Please, please help.