All these methods have helped some users out.
Are you suffering from the VirtualBox error VT-x is disabled in CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED)?
Or, have you ever encountered that problem when you tried to open a virtual machine with VM VirtualBox?
If so, are you looking for solutions or have fixed the issue completely?
That is a system related problem and it can happen to bothWindows and Ubuntuoperating systems (OSes).
How to install Ubuntu on VirtualBox?
What should you prepare for the Ubuntu VirtualBox installation?
Here is a complete guide with pictures for you.
The factors that may cause the VirtualBox problem is multiple; some of them are listed below.
Cause 1.
A 64-bit host requires the VT-x to be enabled in the BIOS.
For some computers, it also needs the Virtualization Technology Directed I/O (VTd) to be enabled.
Cause 2.
Usually, this happens on old machines that are equipped with old CPUs.
Cause 3.
Cause 4.
Cause 5.
Third-Party Security Softwares Interference
Security programs are good for protecting your setup from cyber attacks and data loss.
Such security tools including AV clients.
Below are some methods that have helped many users solving the particular problem.
To make use of SecurAble, first of all, download install it on your rig.
Then, launch the executable file and start to analyze your CPU.
it’s possible for you to use it on another computer that supports virtualization.
Or, maybe you gotta replace a new and advanced CPU for your machine.
If your current CPU does support virtualization, it should be another reason that causes VirtualBox not to open.
This will probably solve your problem.
Power on your setup and tap a special key repeatedly until you enter the BIOS.
The key for accessing the BIOS of the different motherboard is different.
EnableVirtual Technology (VTx)and/orVirtual Technology Directed I/O (VTd).
Save changes, exit BIOS, and kickstart your box.
Just go to VM VirtualBoxSettings > System > Processorand ensure theEnable PAE/NXis checked.
Finally, dont forget to kickstart your machine.
Move toVirtualBox configs > System > Motherboard.
Dont forget to restart the machine.
Avast is one of such antivirus programs.
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