VMware cannot start virtual machine - Windows Defender Credential Guard problem not solved

[mksft]

Hi!

After Windows upgrade from 1803 to 1809 at starting virtual machine VMware reports error that is not compatible with Windows Defender Credential Guard.

I followed all steps in tutorial, disabled it, removed Hyper-V and all its components, selected at computer startup to avoid any startup processes.

Then I tried to disable Core Isolation - there was problem when it was disabled and tried to enable, then disable - computer is not compatible with Core Isolation and Memory Integrity so stays disabled.

But - Windows Defender reports that virtualization security is running and I have no way to stop it.

What a process I must to terminate or disable at computer startup?

Or, how to disable it when at enabling/disabling it fails with message - hardware is not supported?

Really I'm crazy - I have access only to virtual disks, no virtual machines.

Thank you for each help, suggestion and support.

Miro

[wila]

Hi,

No answer to your question, but you really should have stuck with your original thread here: Disabling Windows Defender Credential Guard helped not or at least have referenced it

as otherwise people have to go and ask all the same questions again as this thread misses a LOT of the details already down there.

Here's a MS doc on how-to disable virtualization based security: Manage Windows Defender Credential Guard (Windows 10) | Microsoft Docs

Perhaps that helps?

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Wil

[mksft]

Yes, that thread I started earlier, but no replies looks like it is moved in list down, so near invisible.

Your link is about enabling - or manage, but I need rather exact guide to disable - don't want to lost this thread and begin new.

Really here are two reasons: my English is poor and I'm afraid of failure.

Thank you for your patience and understanding.

Miro

[wila]

Hi,

When I saw this picture, I basically only saw the red encircled part

If that doesn't help because it is a setting for "turn on" and thus immensely unclear into what disabled means..

You could also take a look at the blue circled settings. Look like you can tweak the setting there too.

In the article if you scroll down there's also a description on how-to disable credential guard...

Manage Windows Defender Credential Guard (Windows 10) | Microsoft Docs

edit:

Yes, that thread I started earlier, but no replies looks like it is moved in list down, so near invisible.

A reply to that thread will bring it back up to the top. It's called "bumping a thread" and if you don't do it a lot, the moderators will allow that.

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Wil

[mksft]

This I really did - when you mentioned old thread you could see that there I did it.

Even following all steps in MS link.

Attached how I reconfigured else one time, reboot and the same message in VMware.

My problem is maybe in Core Isolation - or where is? Really I don't understand it.

Look into attachments - problem is that hardware virtualization running, memory integrity turned off.

Miro

[mksft]

What to do?

So, no help means like throw VMware to trash and use Hyper-V or VirtualBox or even VirtualPC?

And where find I VMware features? Nowhere!

Please tell me how to solve this problem.

Thank you.

Miro

[wila]

Hi,

I'm sorry but I personally cannot help you with this as I do not have the hardware here to test this on.

Perhaps bluefirestorm​ still has some ideas?

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Wil

[mksft]

I contacted him, but sadly no respond.

I'm sad that my VMware is not possible to use... where to find better support than here?

Miro

[wila]

Hi,

The problem is that most people on here are volunteers.

For VMware Workstation it is not easy to open a support ticket.

You can still try to open a ticket here: https://my.vmware.com/group/vmware/get-help

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Wil

[mksft]

Sadly that link is full of other links addressing other links and I'm lost with my poor English.

What there can I get?

Miro

[wila · Accepted solution]

Hi,

If you are very very lucky support, but unless you bought workstation within the last 30 days or so (sorry might misremember the amount of days) then there is no ticket you can open.

Have you seen this thread?

VMWare Workstation cannot run on Windows 10 after recent update to Windows 10

It has a number of ways to disable credential guard issues.

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Wil

[mksft]

Greeeeeeaaaaaat friend!

That link helped!

No matter that itwas fight around 2 hours, but VMware works and virtual machines working!

Thank you as very as I can - really don't forget - you're wise man and great helper.

Miro

[wila]

Hi,

Happy to hear that it now works!

Good to know that the link helped (I have added it to my "solutions that work" library) so thanks for reporting back that it was key to getting your issues fixed.

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Wil