Category Archives: BIOS

Unable to boot from CD/DVD on HP 4540s ProBook Laptop

I received a new HP ProBook 4540s today. I needed to image it to our business standard image. I placed the CD in the drive to boot but it just kept on booting into the OEM Windows install. After many curse words and much grinding of teeth, I found a solution:

  1. When the laptop is at the initial HP log screen, press the ESC key
  2. Wait for the menu to appear and then press F10
  3. Select “Log in as a guest user”
  4. Choose “System Configuration”
  5. Expand the “Boot Options” option and scroll down and un-tick the “Secureboot” option.
  6. You then just have to choose ‘UEFI Hybrid (with CSM)’ or ‘Legacy’  under ‘Boot Mode’.

Save these options and exit and your laptop will now boot from the CD/DVD ROM drive.

HP ProBook 4540s


Posted by on February 14, 2013 in BIOS, Laptops / Notebooks


The virtual machine could not be started because the hypervisor is not running

My quest to try out Microsoft Hyper-V R2 2008 is on going. I decided to install my first Hyper-V virtual machine. But, of course, it was not that easy.

This lovely box appeared:

Hyper-V requires hardware support, including: an x64 CPU; VT (Intel) or AMD-V (AMD) hardware extensions; No eXecute (NX)/eXecute Disable (XD) and full BIOS support for hardware virtualization.

The problem is that in your computer BIOS, the virtualization option is not enabled. By default, virtualization in the BIOS is disabled.

Your CPU needs to be able to support virtualization. Check the specs on your CPU.

To enable this, restart your computer and enter the BIOS. Every system board differs so just read the on screen instructions on how to enter the BIOS (normally DEL or F10).

Once in the BIOS, navigate to CPU settings or advanced settings (may be called something else depending on your BIOS). Look for anything related to virtualization and enable it.

Save the settings and TURN OFF your computer. This will allow the BIOS to enable the feature on start up.

NOTE: Be very careful in the BIOS. If you change the wrong setting, your PC may not boot or become unstable.