Do I need Virtualization Enabled in Windows 8 X64, with Avast 8

Do I need to enable Virtualization in Windows 8 X64 with Avast 8,

Think currently disabled in Bios, as I wasn’t sure what it’s used for, Currently have an AMD A6-3620 Quad Core System.

Thank you all in advance, sorry if this is a noobie question, I don’t know too much on CPU Technlogies and stuff like that