Virtual Machines Fail to Start on VirtualBox 4.3.14 or Later Hosts Running Windows 8.1 (Doc ID 1953778.1)

Last updated on DECEMBER 19, 2014

Applies to:

Oracle VM VirtualBox - Version 4.3 to 4.3 [Release 4.0]
Information in this document applies to any platform.

Symptoms

Both new and existing Virtual Machines (VMs) cannot be started after upgrading to VirtualBox 4.3.14 or later on Windows 8.1 x64 hosts.

For example, users double-clicking on a stopped VM in the Administration GUI are presented with a pop-up containing CLI arguments and a message that it failed. Restarting the system does not fix the issue, nor does un-installing and reinstalling 4.3.14. 

More information including examples of errors can be found at:

https://www.virtualbox.org/ticket/13187

Changes

VirtualBox has recently been upgraded to 4.3.14-17.

Cause

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