Opened 10 years ago
Closed 5 years ago
#13979 closed defect (obsolete)
Failed to open a session for the virtual machine vm. VT-x is not available.
| Reported by: | Goldlin | Owned by: | |
|---|---|---|---|
| Component: | VMM | Version: | VirtualBox 4.3.26 |
| Keywords: | VT-x is not available | Cc: | |
| Guest type: | other | Host type: | Windows |
Description
Error:
Failed to open a session for the virtual machine vm. VT-x is not available. (VERR_VMX_NO_VMX). Failed to open a session for the virtual machine vm.
VT-x is not available. (VERR_VMX_NO_VMX).
Result Code: E_FAIL (0x80004005) Component: Console Interface: IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}
Host OS: Windows 7 Home Basic 64 bit Version of Virtual Box upgrade: 4.3.26 Current Running Version : 4.3.12
Attachments (6)
Change History (11)
comment:1 by , 10 years ago
by , 10 years ago
| Attachment: | VBoxSVC.log.1 added |
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by , 10 years ago
| Attachment: | VBoxSVC.log.2.1 added |
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by , 10 years ago
| Attachment: | VBoxSVC.log.3 added |
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by , 10 years ago
| Attachment: | VBoxSVC.log added |
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by , 10 years ago
comment:2 by , 10 years ago
- This issue exist in 4.3.28 version of Virtual box as well.
- I am using Sony Vaio: VPCEH25EN.
- Virtualization is enabled in BIOS.
- HOST OS is Windows 7 Home Basic 64bit
- Guest is bootable if VT-x is disabled
- 64bit (Windows 10 Tech preview) guest ends up in error as VT-x option becomes mandatory
follow-up: 4 comment:3 by , 10 years ago
HM: Failed to initialize VT-x / AMD-V: VERR_VMX_IN_VMX_ROOT_MODE
HM: VMX MSR_IA32_FEATURE_CONTROL=5
VMSetError: F:\tinderbox\win-4.3\src\VBox\VMM\VMMR3\HM.cpp(915) int __cdecl
hmR3InitFinalizeR0(struct VM *); rc=VERR_VMX_IN_VMX_ROOT_MODE
VMSetError: VT-x is being used by another hypervisor.
Are you sure no other software on your Windows machine is using VT-x?
comment:4 by , 9 years ago
Replying to ramshankar:
HM: Failed to initialize VT-x / AMD-V: VERR_VMX_IN_VMX_ROOT_MODE HM: VMX MSR_IA32_FEATURE_CONTROL=5 VMSetError: F:\tinderbox\win-4.3\src\VBox\VMM\VMMR3\HM.cpp(915) int __cdecl hmR3InitFinalizeR0(struct VM *); rc=VERR_VMX_IN_VMX_ROOT_MODE VMSetError: VT-x is being used by another hypervisor.Are you sure no other software on your Windows machine is using VT-x?
Yes no other virtualization software such as vmware is installed/using my windows environment.
comment:5 by , 5 years ago
| Resolution: | → obsolete |
|---|---|
| Status: | new → closed |
No activity for over 4 years, please reopen if still an issue with a recent VirtualBox release.
This error code means that VT-x is either not available on your host or it's disabled in the BIOS settings. The VBox.log file (which you should always attach when reporting bugs!) will probably show the reason.