Mine just froze totally two days ago. Haven't been able to bring it back to life yet. Keep on getting this BIOS/UEFI screen and have probably tried all the available options on it - not really knowing what they meant. After that, the best I have so far is a screen saying it is 'carrying out automatic repairs' and these may take 'more than one hour'. Several hours later - no change.
Am now reaching a stage of some desperation. Any ideas very welcome...