Gremlich Johns, on 01 August 2013 - 02:36 PM, said:
However, malware can escape from their holding cell and wreak havoc.
I don't need to play that badly. Yet.
That's not true.
Hardware assisted virtualisation enables use of some hardware acceleration features designed to speed up virtual machines.
Disabling this feature doesn't disable the VM-based code analysis and sandbox systems nor reduce it's capabilities or security.
With this unticked, Avast's virtual code execution and sandbox features will be very slightly slower, that's all.
If you disable virtual machine acceleration features in your BIOS, it will have the same effect, as Avast won't see any hardware acceleration features to use.
Many BIOSes have VM acceleration
disabled as default which could be why this problem varies from system to system.
EDIT: additional info for the curious: Unless you run full operating systems in VMs (like Virtual Box, Citrix or VirtualPC etc etc,) there's no good reason to enable hardware VM support. In fact it can slow down non-VM code. Very very very slightly. Enabled, it can speed up VM code very very slightly. It's not a deal-winning or breaking feature unless you depend of VMs running 24/7 at the maximum speed possible (eg are running a Citrix server!). Which is why most BIOSes disable it. My information is a year or two old and I suspect more modern implementations have mitigated inefficiencies introduced by VM acceleration and have VM acceleration enabled by default (and some people turn it on in the BIOSes themselves) but commenting further would mean I'd have to do some research and I'm lazy. Just untick the box in Avast or disable hardware VM acceleration in your BIOS. Avast will be fine.
Edited by Xajorkith, 04 August 2013 - 01:19 AM.