I installed Windows 8 Developers Preview on my Toshiba Satellite L355-S7905 laptop by itself on a clean install. Windows 8 blocked access to my BIOS. This also means that I cannot boot my system from the DVD drive or any other external source. Pressing the F12 key to access the boot drive selection menu did nothing.
I removed the Windows 8 hard drive and rebooted. Still no BIOS access. My system displayed the customary error message. I rebooted again. Access to the BIOS has now been restored.
Microsoft has intentionally embedded code into Windows 8 to block users from installing or booting a Linux or other operating system disk.
This is not FUD. This is fact.
I’m done with Windows 8.