I am having problems doing an In-place install of Windows 10 Technical Preview, and I am after opinions please....
Some background may help though:
I am currently running Windows 8 64 Bit, and seem to be one of those people unable to upgrade to Windows 8.1 due to the requirements related to the CPU requiring CMPXCHG16b / CompareExchange128 hardware support (as well as the motherboard), as I have a Core 2 Quad Q8300 CPU, and this is allegedly one of the affected cpus.
I should point out however, that on any of the ten or so plus times I have tried to upgrade Windows 8 over to Windows 8.1, I never get an actual error message that is clear enough to actually say "Your CPU is not supported..." as most others seem to, but instead, my error, right at the end of the upgrade process (and thus roll-back), actually talks of insufficient space for a RAMDISK to be created.
Googling all this back in the day however, seemed to indicate that the real problem was my Q8300 cpu and the lack of hardware support for CompareExchange128, though one wonders why I never got the actual relevant error message etc.
Draw your own conclusions as to that therefore.
In any event, when the first preview of Windows 10 came out, I tried a CLEAN install under a dual boot system, and it happily let me install the 64 bit version of Windows 10 as a clean install, thus seeming to indicate to me that the hardware requirement for CompareExchange128 on 64 bit Windows 10 has been removed?
I'd first ask Microsoft is this is indeed the case?
My issue now however, is that when I try to do an IN-PLACE upgrade install to Windows 10 latest Technical Preview, it fails with the exact same error screen I see when attempting an upgrade from Windows 8 to Windows 8.1, with the Q8300 allegedly unsupported CPU.
Can I therefore flag this up for discussion, that my findings or thoughts seem to reveal two things:
1) Windows 10 64 bit would not SEEM to have the CompareExchange128 hardware support requirements that came in with Windows 8.1
2) It will therefore let you CLEAN install on such a cpu/mobo, but there seems to be an issue on IN-PLACE Upgrade installs, whereby it DOES fail for this problem.
Any thoughts from Microsoft or others in relation to this?
And I post this as a question, rather than a discussion item itself, as I'd like to know if there is a way around this, to allow me an IN-PLACE Upgrade Install of Windows 10 on a Q8300 cpu without CompareExhange128 hardware support...