virtualbox.org

Hi All,

Running vbox (latest) on a win10pro (latest), up until last wk, I was able to start any vm (linux or windows) straight from the vm shortcut without needing to open the vbox manager. However, when I do that now, none of the VMs will boot up, they hang during loading. As soon as I open the vbox manager, the VM will resume its boot.
Any ideas?

Thanks!

jacks01 wrote:As soon as I open the vbox manager, the VM will resume its boot.

This is an interesting twist! Haven't heard of this before.

jacks01 wrote:up until last wk, I was able to start any vm (linux or windows) straight from the vm shortcut without needing to open the vbox manager.

Makes me wonder if a host update occurred.

Try setting the VM to 2 processors if it is not already.

If that doesn't work, right-click the guest in the main Virtualbox window's guest list, choose Show Log.

Search the far left tab's log for this text:

Attempting fall back to NEM

If you find it, Hyper-V is enabled. See HMR3Init: Attempting fall back to NEM (Hyper-V is active).

If you don't find that text, save the far left tab's log, zip the log file, and post the zip file, using the forum's Upload Attachment tab.

scottgus1 wrote:

jacks01 wrote:As soon as I open the vbox manager, the VM will resume its boot.

This is an interesting twist! Haven't heard of this before.

jacks01 wrote:up until last wk, I was able to start any vm (linux or windows) straight from the vm shortcut without needing to open the vbox manager.

Makes me wonder if a host update occurred.

Try setting the VM to 2 processors if it is not already.

If that doesn't work, right-click the guest in the main Virtualbox window's guest list, choose Show Log.

Search the far left tab's log for this text:

Attempting fall back to NEM

If you find it, Hyper-V is enabled. See

If you don't find that text, save the far left tab's log, zip the log file, and post the zip file, using the forum's Upload Attachment tab.

Brilliant! Thank you so much!

Fixed with this command from your link.
bcdedit /set hypervisorlaunchtype off

Great! Glad you're up and running.