VirtualBox 4.3.18.r96516 fail to start on Windows 10

[hanxue]

OS: Windows 10 64-bit VirtualBox 4.3.18.r96516

VirtualBox was running fine on Windows 8.1, prior to the upgrade to Windows 10. After upgrading, it fails to start.

Windows Event Log:

Faulting application name: VirtualBox.exe, version: 0.0.0.0, time stamp: 0x5439147c
Faulting module name: VirtualBox.exe, version: 0.0.0.0, time stamp: 0x5439147c
Exception code: 0xc0000005

Log Name:      Application
Source:        Windows Error Reporting
Date:          12/11/2015 11:11:22 AM
Event ID:      1001
Task Category: None
Level:         Information
Keywords:      Classic
User:          N/A
Computer:      EP-RD-Demo
Description:
Fault bucket 85968061883, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: VirtualBox.exe
P2: 0.0.0.0
P3: 5439147c
P4: VirtualBox.exe
P5: 0.0.0.0
P6: 5439147c
P7: c0000005
P8: 0000000000015422
P9: 
P10: 

Attached files:
C:\Users\Entrypass\AppData\Local\Temp\WER6ECF.tmp.WERInternalMetadata.xml

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_VirtualBox.exe_507485aa57f6287b3de66a1e0fcb395ad901a53_4b3e455e_1c8773a1

Analysis symbol: 
Rechecking for solution: 0
Report Id: 19b95667-bd19-4dbd-9fd5-5573d109fd6d
Report Status: 0
Hashed bucket: ab091cf9792f41863d8d283772de5989
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Windows Error Reporting" />
    <EventID Qualifiers="0">1001</EventID>
    <Level>4</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2015-11-12T03:11:22.000000000Z" />
    <EventRecordID>7506</EventRecordID>
    <Channel>Application</Channel>
    <Computer>EP-RD-Demo</Computer>
    <Security />
  </System>
  <EventData>
    <Data>85968061883</Data>
    <Data>4</Data>
    <Data>APPCRASH</Data>
    <Data>Not available</Data>
    <Data>0</Data>
    <Data>VirtualBox.exe</Data>
    <Data>0.0.0.0</Data>
    <Data>5439147c</Data>
    <Data>VirtualBox.exe</Data>
    <Data>0.0.0.0</Data>
    <Data>5439147c</Data>
    <Data>c0000005</Data>
    <Data>0000000000015422</Data>
    <Data>
    </Data>
    <Data>
    </Data>
    <Data>
C:\Users\Entrypass\AppData\Local\Temp\WER6ECF.tmp.WERInternalMetadata.xml</Data>
    <Data>C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_VirtualBox.exe_507485aa57f6287b3de66a1e0fcb395ad901a53_4b3e455e_1c8773a1</Data>
    <Data>
    </Data>
    <Data>0</Data>
    <Data>19b95667-bd19-4dbd-9fd5-5573d109fd6d</Data>
    <Data>0</Data>
    <Data>ab091cf9792f41863d8d283772de5989</Data>
  </EventData>
</Event>

[Frank Mehnert]

VirtualBox 4.3 does not officially support Windows 10. You might have more luck with VirtualBox 4.3.34 but the official way is to upgrade to VirtualBox 5.0.10.