virtualbox.org

Hi, I was installed VBOX 4.3.6 on my Windows 8.1 x64 system.
And it had no issue at all.
But recently I found new update available so, I upgraded it to latest version 4.3.8.
by doing the upgrading, I received an error message and system roll back the installation. due to some faulty on bridged adaptor drivers .
I unchecked bridged adaptor on 4.3.8 installation, VirtualBox installation successfully . but there is no bridged network available.

but once I checked Bridged adaptor while 4.3.8 installation, installation will be failed and rollback all the installation.

so how to install VirtualBox bridged adaptor manually or separately ?

Removed again, and try to re install. failed

Make sure you use "Run as administrator" when running the installer, and don't skip any part of the installation. Also, make sure that Driver Signature Enforcement is not set to automatically (silently) reject anything.

thanks Yes, I ran as administrator.

did a system restore , and restored to previouse 4.3.6, all works fine.
and i will never did upgrade again.