Vbox not working anymore since upgrade to W8.1

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christian1980
Posts: 7
Joined: 21. Sep 2011, 16:20
Primary OS: MS Windows 7
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Dos, Debian, Win Xp, Win7, Win 8

Vbox not working anymore since upgrade to W8.1

Post by christian1980 »

Hi,

Since I upgrade my laptop Windows 8 Pro to Windows 8.1 Pro, I can't start any virtual machine (all guests are 32 bits).

It always end with : "Failed to load VMMR0.r0 (VERR_SVM_DISABLED)".

The same setup works fine on a Windows 7 ou 8.
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christian1980
Posts: 7
Joined: 21. Sep 2011, 16:20
Primary OS: MS Windows 7
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Dos, Debian, Win Xp, Win7, Win 8

Re: Vbox not working anymore since upgrade to W8.1

Post by christian1980 »

No solutions ???????
mpack
Site Moderator
Posts: 39134
Joined: 4. Sep 2008, 17:09
Primary OS: MS Windows 10
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Mostly XP

Re: Vbox not working anymore since upgrade to W8.1

Post by mpack »

Assuming you don't have something else running which uses hardware VM acceleration (i.e. Hyper-v), then the solution for the moment would be to revert to VirtualBox 4.2.18.
christian1980
Posts: 7
Joined: 21. Sep 2011, 16:20
Primary OS: MS Windows 7
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Dos, Debian, Win Xp, Win7, Win 8

Re: Vbox not working anymore since upgrade to W8.1

Post by christian1980 »

Hyper-V is not installed
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