VirtualBox failes to start on Windows Insider Preview Build 14942.1000, attached logs, with same content as description

[geisenhorn]

Faulting application name: VirtualBox.exe, version: 5.1.6.10634, time stamp: 0x57d6d53c Faulting module name: VirtualBox.exe, version: 5.1.6.10634, time stamp: 0x57d6d53c Exception code: 0xc0000005 Fault offset: 0x00000000000139bd Faulting process id: 0x54a4 Faulting application start time: 0x01d223d73d454d57 Faulting application path: C:\Program Files\Oracle\VirtualBox\VirtualBox.exe Faulting module path: C:\Program Files\Oracle\VirtualBox\VirtualBox.exe Report Id: 2f687cf4-6ef7-48f4-a04c-6728c120eaa3 Faulting package full name: Faulting package-relative application ID:

• <Event xmlns="​http://schemas.microsoft.com/win/2004/08/events/event">
• <System> <Provider Name="Application Error" /> <EventID Qualifiers="0">1000</EventID> <Level>2</Level> <Task>100</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2016-10-11T15:50:50.112110000Z" /> <EventRecordID>1661</EventRecordID> <Channel>Application</Channel> <Computer>Eisenhorn</Computer> <Security /> </System>
• <EventData> <Data>VirtualBox.exe</Data> <Data>5.1.6.10634</Data> <Data>57d6d53c</Data> <Data>VirtualBox.exe</Data> <Data>5.1.6.10634</Data> <Data>57d6d53c</Data> <Data>c0000005</Data> <Data>00000000000139bd</Data> <Data>54a4</Data> <Data>01d223d73d454d57</Data> <Data>C:\Program Files\Oracle\VirtualBox\VirtualBox.exe</Data> <Data>C:\Program Files\Oracle\VirtualBox\VirtualBox.exe</Data> <Data>2f687cf4-6ef7-48f4-a04c-6728c120eaa3</Data> <Data /> <Data /> </EventData> </Event>

Faulting application name: VirtualBox.exe, version: 5.1.6.10634, time stamp: 0x57d6d53c Faulting module name: VirtualBox.exe, version: 5.1.6.10634, time stamp: 0x57d6d53c Exception code: 0xc0000005 Fault offset: 0x00000000000139bd Faulting process id: 0x19d8 Faulting application start time: 0x01d223d9f4b64064 Faulting application path: C:\Program Files\Oracle\VirtualBox\VirtualBox.exe Faulting module path: C:\Program Files\Oracle\VirtualBox\VirtualBox.exe Report Id: 703bb7f7-a557-4a05-b270-e729dabb5ea3 Faulting package full name: Faulting package-relative application ID:

• <Event xmlns="​http://schemas.microsoft.com/win/2004/08/events/event">
• <System> <Provider Name="Application Error" /> <EventID Qualifiers="0">1000</EventID> <Level>2</Level> <Task>100</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2016-10-11T16:10:17.001042400Z" /> <EventRecordID>1669</EventRecordID> <Channel>Application</Channel> <Computer>Eisenhorn</Computer> <Security /> </System>
• <EventData> <Data>VirtualBox.exe</Data> <Data>5.1.6.10634</Data> <Data>57d6d53c</Data> <Data>VirtualBox.exe</Data> <Data>5.1.6.10634</Data> <Data>57d6d53c</Data> <Data>c0000005</Data> <Data>00000000000139bd</Data> <Data>19d8</Data> <Data>01d223d9f4b64064</Data> <Data>C:\Program Files\Oracle\VirtualBox\VirtualBox.exe</Data> <Data>C:\Program Files\Oracle\VirtualBox\VirtualBox.exe</Data> <Data>703bb7f7-a557-4a05-b270-e729dabb5ea3</Data> <Data /> <Data /> </EventData> </Event>

[geisenhorn]

Error log from Windows Event Viewer

[geisenhorn]

Second log file

[teh_klev]

Can you try upgrading to VirtualBox 5.1.7 (https://www.virtualbox.org/wiki/Testbuilds)

Also, and importantly, check that Hyper-V hasn't been re-enabled. I noticed that one of the latest insider preview builds over the past week or so re-enables Hyper-V causing VirtualBox to fail.

I'm running Insider Build build 14942 and VirtualBox test build 5.1.7 works fine for now.

[Frank Mehnert]

Should be fixed with VBox 5.1.8. Please reopen if necessary.