if the PC is under warranty return to seller . The PC manufacture covers the warranty not Microsoft.
In the 1 to2 days prior to an update Microsoft magic changes some settings back to standard much to the annoyance of some . Update is the Wednesday following the 2nd Tuesday (11th this month) in New Zealand assuming the person in Microsoft is ready I suggest you do nothing until late Wednesday. Good luck.
Thanks for that, if anyone really wants to get ahead of the game with Windows 10 Version 1803, you could use the Windows Insider Program to try out this release.