I can't guess what Windows version you have now but those preview versions did that. I had to erase the HDD (boot and delete the partitions with Windows) then clean install W10. Now if the machine has other issues like BIOS or other problems, you'll hit that soon enough.
I have a HP Compaq elite 8300 USDT running windows 10 Pro. Each morning I get this large dialog box on my monitor stating that I can no longer receive security patches until I install the latest version of Win 10 (1709). I can download 1709 and start to install but before it completes installing I get a large dialog box stating a major error has occurred and I must contact Microsoft Support with error code 0xc1900200 or a similar number. I have, on three occasions "chatted" with "support" and they have remotely taken over my computer but accomplished nothing. (Ref 1418706176. Please help if you have any ideas that might help. Thanks

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