Last night we released Windows 10 Technical Preview Build 10049 to Windows Insiders on the Fast ring.
This is an exciting release – as it has some key new technology in it. Most notably it is the first release with Project Spartan in it. You can read all about it here: http://blogs.windows.com/bloggingwindows/2015/03/30/windows-10-technical-preview-build-10049-now-available/
However, this build also includes a bug that affects Hyper-V.
The bug stops us from being able to correctly register one of our system drivers if you choose to install Hyper-V. It should be noted that if you already have Hyper-V enabled, and then upgrade to 10049 – everything works fine. It is only if you install build 10049 and then enable Hyper-V that you will hit this issue.
If you want to use Project Spartan and Hyper-V on the same system – what you need to do is:
- Install an earlier version of Windows 10
- Enable Hyper-V
- Upgrade to 10049
If you are already on 10049 and have not yet enabled Hyper-V, you can either follow the above steps, or hang tight while we work on the next flight!