Opened 9 years ago
Last modified 9 years ago
#13571 new defect
64bit guest on 64bit Windows 8.1 running bootcamp on a macbook air
| Reported by: | Skovby | Owned by: | |
|---|---|---|---|
| Component: | other | Version: | VirtualBox 4.3.18 |
| Keywords: | Cc: | ||
| Guest type: | Windows | Host type: | Windows |
Description
I have just installed Virtual Box 4.3.18r96516, on a Macbook Air running Windows 8.1 in bootcamp. Right after the installation completed, I installed Windows Server 2012R2 64bit on a new virtual machine - this worked perfectly and I also installed an SQL server 2012 afterwards. Now a few hours later after sleeping the computer I get this error: "VT-x/AMD-V hardware acceleration is not available on your system. Your 64-bit guest will fail to detect a 64-bit CPU and will not be able to boot.". I tried rebooting into OS X and back again, but that didn't work either (same error). In task manager->performance it says Virtualization Enabled, and from a bit of research I can gather that virtualization should be enabled as default on all macs.
You set "Windows" as host type. Are you really running Windows as host OS on that MacBook Air?