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

Last updated on FEBRUARY 20, 2019

Applies to:

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


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:


VirtualBox has recently been upgraded to 4.3.14-17.


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