Chancer Posted April 10, 2014 Share Posted April 10, 2014 (edited) G'day,I installed update to my Win 8.1 WMC 64 bit PC yesterday. I have an Asus P8Z77-V Pro motherboard with an i7 cpu.Windows is activated with a legit key.Now when I run Hyper-V and attempt to start a VM I get an error saying the Hypervisor is not running.It worked fine last time I used it !I have checked in BIOS and virtualisation is turned On. I did turn it off, reboot, turn it on again and reboot just in case. This made no difference.Has anybody else seen this - or better still can anybody point me in the direction of a solution.Thanks Edited April 10, 2014 by Chancer Quote Link to comment Share on other sites More sharing options...
dcs18 Posted April 10, 2014 Share Posted April 10, 2014 G'day,I installed update 1 to my Win 8.1 WMC 64 bit PC yesterday.Try upgrading to the 8.1 Update - the one you're running, the 8.1 Update 1 is a beta. Quote Link to comment Share on other sites More sharing options...
Chancer Posted April 10, 2014 Author Share Posted April 10, 2014 Why do you suggest it is the beta? I would be surprised if it is the beta as I installed it via Microsoft update. Quote Link to comment Share on other sites More sharing options...
dcs18 Posted April 10, 2014 Share Posted April 10, 2014 I don't know the antecedents of your installation - but, which one exactly do you have???8.1 Update or the 8.1 Update 1 which is a beta. Quote Link to comment Share on other sites More sharing options...
Chancer Posted April 10, 2014 Author Share Posted April 10, 2014 My update history lists Windows 8.1 Update for x64-based systems (KB2919355), along with everything else.As I mention above I downloaded via Windows update, not from anywhere else. Quote Link to comment Share on other sites More sharing options...
dcs18 Posted April 10, 2014 Share Posted April 10, 2014 (edited) In that case, I suggest altering the first post from 8.1 Update 1 to just 8.1 Update - when trying to get issues resolved, it's best to submit accurate data. ;) Edited April 10, 2014 by dcs18 Quote Link to comment Share on other sites More sharing options...
Chancer Posted April 10, 2014 Author Share Posted April 10, 2014 OK - I have done. I used the term Update 1 as that it what a lot of 'noise' on Google refers to! Quote Link to comment Share on other sites More sharing options...
dcs18 Posted April 10, 2014 Share Posted April 10, 2014 Can you try to check if your BIOS can be possibly updated. Quote Link to comment Share on other sites More sharing options...
dcs18 Posted April 10, 2014 Share Posted April 10, 2014 If the BIOS version is recent - does the following elevated command help:--bcdedit /set hypervisorlaunchtype auto Quote Link to comment Share on other sites More sharing options...
Chancer Posted April 10, 2014 Author Share Posted April 10, 2014 I have the latest bios.However the bcdedit /set hypervisorlaunchtype auto followed by a reboot seems to have done the trick.Thank you very much.I have also asked Microsoft - let's see if they as quick as you! Quote Link to comment Share on other sites More sharing options...
dcs18 Posted April 10, 2014 Share Posted April 10, 2014 My only concern is that it's not the Hyper-V that's really broken - but, rather the BCD that's gone corrupt. B)Hope your BCD setting survives a shutdown and/or a reboot - fingers crossed. ^_^ Quote Link to comment Share on other sites More sharing options...
Chancer Posted April 10, 2014 Author Share Posted April 10, 2014 It has survived a reboot and a 'cold start' - so I'm optimistic. Quote Link to comment Share on other sites More sharing options...
ASIO Posted April 10, 2014 Share Posted April 10, 2014 It has survived a reboot and a 'cold start' - so I'm optimistic.uninstall the updates ... and check it is working or not Quote Link to comment Share on other sites More sharing options...
Chancer Posted April 11, 2014 Author Share Posted April 11, 2014 As it is working - I will take the view, if it ain't broke........! Quote Link to comment Share on other sites More sharing options...
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