Guru Meditation critical error win10 pro 64bit

[nandorivera]

Hi, I just downloaded latest version of VB on my win10 pro 64 bit desktop machine.
iam creating a virtual client for studies purposes. but im getting the above error, im sure you are familiar with the screenshot.
I have attached my VB log file.

if you can please assist would be greatly appreciated.

Thanking you in advance,

[mpack]

You are using the May 2019 edition of Windows 10, why are you posting in the Windows Pre-releases section?

Topic moved to "Windows Hosts".

As to the error, you're getting a triple fault when booting from the ISO, so check for a corrupted download. Another possibility is that you may have chosen the wrong OS template - I have no idea what you downloaded, but do not use the Win7 template for later Windows versions. Use the exact OS template, or at least the newest.

[scottgus1]

Your log contains these lines:

{timestamp} HM: HMR3Init: Attempting fall back to NEM: VT-x is not available
{timestamp} NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...

You might notice in the guest window's Status Bar the green turtle: The choice of animal is appropriate: Your guest is running, just really slow. Or it might guru-meditate. This is because a service that uses Microsoft Hyper-V is running on your host PC. Normally Hyper-V blocks Virtualbox. But your PC is of the type and OS where Virtualbox can attempt to run the guest using the Hyper-V engine. This arrangement is still being developed and isn't 100% yet.

If VirtualBox is running without Hyper-V enabled, and nothing else is interfering with hardware virtualization (VT-x / AMD-V), then the usual virtualization icon () will be seen in the Status Bar.

To turn Hyper-V off completely, do this:

1. Shut down all programs. You will have to reboot your host.

2. Look into I have a 64bit host, but can't install 64bit guests, 2nd post, points 2 & 3 and ensure that none of these things are running.

3. Find the Command Prompt icon, right click it and choose Run As Administrator.

4. Enter this command:

bcdedit /set hypervisorlaunchtype off

5. Enter this command:

shutdown -s -t 2

6. When the computer turns off, unplug it for 20 seconds. Then plug it in again and boot up Windows 10.

Your Virtualbox should be running now. If the green turtle still appears and the tell-tale lines are in the log, try all the steps again. If you don't get the standard virtualization icon, post back exactly what you did and we'll try to help some more.

For further info, see https://www.tenforums.com/tutorials/139 ... puter.html

[nandorivera]

Hi guys,

Thank you for your reply, this is solved. i did just folow first recommendations from "mpack".

1. my win10 pro version was outdated may 2019, upgraded just now to new release 2020.
2. uninstalled hyper V
3. removed all virtual machines and started new ones.
4. i have completed, created and installed windows server 2019 evaluation on Virtual box successfully.

thanks and rgds,