In response to pwlm1975 who said "Yep, and you've whined over W10 in prior threads too." too right!! And I will continue to do so...Win 10 is absolute crap; nothing to do with the interface...it was M/S forcing Kaby Lake hardware owners to install Windows 10...because they enforced a non Windows 8 supported regime. I usually like to have a lot of browser tabs and Windows open and in use at any one time...but I got sick and tired of error messages from M/S telling me my system resources were insufficient...yea right i7 7700K with 64 GB ram and resources insufficient. That never happened when the same hardware was I using Windows 8, and it hasn't and doesn't happen now...still with Windows 8 on x79, so that is enough anecdotal evidence for me. I also said "fuck AMD" because along similar lines, they decided not to support a Windows 8 system running RX 580s, they were willing to provide drivers for 32 & 64 bit Windows 7 and Linux...but not for Windows 8...great logic there, isn't it? All well and good to choose to cease support for older Operating Systems...but that's not what they did, is it? So as I said "fuck AMD". pwlm1975 you also said "The drivers all work fine in W8.1 and W10 having tried them myself on an R9 380X and an RX 570;" [I am assuming you refer to a Windows 10 driver of some description] that's great! But that isn't an RX 580 is it? Yes, as I stated I installed a Strix R9 380 and it worked fine, was recognised by Windows and able to have drivers, and updates installed, and run an complete benchmarks. But it certainly appears to be a case of the AMD provided software causing the RX 580 to be "unrecognisable" to Windows 8 and unable to have drivers installed. Other software can "see" the RX 580 and identified it as such [as described in original post] but that is of little consequence when Microsoft itself is unable to identify it, or to install drivers for the 580 to work correctly, which appears to be the exact situation that the good folk from AMD envisaged with their Operating System support policy was so thoughtfully implemented, so I find myself once again at the same point of conclusion as I had before - "fuck AMD". Thanks very much...and GOOD NIGHT!!