I am using a 10 year-old Alienware (non Dell, built just before the takeover) ALX x58, with an ASUS P6T Deluxe V2 MB, BIOS fully updated, drivers fully updated. It has an Intel Core i-7 975 4 core, (shows as 8 with hyper-threading) processor & 24gb DDR3 SDRAM.. I boot Windows 7 SP1 x64 and Windows 10 Pro plus Windows 10 Enterprise (x64) each on their own large partitions. It's the first 2 I'm concerned about as I can't get the Win 10 to upgrade beyond 1709. I get a Safe_OS Boot type error 0xC1900101 - 0x20017 each time. Tried disconnecting everything, clean installs, - every-which-way (about 30 times now) and yes the drives are clean. Device Manager (showing hidden devices) has nothing flagged.
I'm worried as next January my main OS Windows 7 will be obsolete and I wont be able to upgrade it at this rate.
I'm a pensioner and can no longer afford shiny new super-gaming machines, much as I would like one.
My question is, what changed with Windows 10 versions beyond 1709 to make them so unfriendly?