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VirtualBox installation issues

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There have been some issues when installing the VirtualBox and running the Virtual Development Machine.

First of all many problems are mentioned and their solution explained in the Virtual Box Troubleshooting page.

Common issues:

During installation, the maximum allowed filter count was reached on the host. In this case, the MSI log would mention the 0x8004a029 error code returned on NetFlt network component install:
VBoxNetCfgWinInstallComponent: Install failed, hr (0x8004a029)
You can try to increase the maximum filter count in the Windows registry at the following key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\MaxNumFilters
The maximum number allowed is 14. After a reboot, try to re-install VirtualBox.

Environment and Versions: 

Virtual Box 4.3.x

whatever