I am trying to enable intel VT through BIOS but can't access. I read that the small button next to power button can be used but a system restore is needed ... Is it safe or is there any other way to enter the BIOS?
This answer was provided by ParrotMac in the comments to the question. His answer probably saved me a few minutes of searching all around for the right Function key to enter the bios, therefore I think his answer deserves to be in the answers provided.
The Lenovo G500 actually provides a small button just to the right of the power button with a curving arrow on it. First shutdown the machine and then press the button. The machine will turn on and you'll be able to choose between: - Normal Start up - BIOS - Boot Sequence - System Recovery
Or, in the words of ParrotMac:
Newer Lenovos have a very small button that's usually somewhat recessed... From an off state, simply press this button and your computer will either boot to the BIOS, or to a menu allowing you to choose the BIOS
Take a look at this site: there are mostly the keys F1, F2, Ctrl+Alt+F11* or " Access IBM "
And yes, it is safe to try all of them out :)
Try to do it. Lenovo (formerly IBM)
ThinkPad, IdeaPad, 3000 Series, ThinkCentre, ThinkStation
Press F1 or F2 after powering on the computer. Older Lenovo products allow access to BIOS using Ctrl+Alt+F3, Ctrl+Alt+Ins, or Fn+F1.