Giveaway of the Day Forums

1. 

   Anonymous
   Unregistered

   http://www.zdnet.com/how-the-new-windows-8-license-terms-affect-you-7000003028/

   Can I choose between 32-bit (x86) and 64-bit (x64) versions on the same PC?

   Installing the 32- bit version of Windows 8 on this system requires a change to the BIOS settings to legacy BIOS mode. If you switch back to the 64- bit version of Windows 8 from the 32-bit version of Windows 8, you should revert back to the original BIOS settings. If you do not revert back to these BIOS settings when switching back to the 64-bit version, the following Windows 8 functionalities will not work as they rely on UEFI mode boot:

   Secure Boot,
   Seamless Boot experience,
   Network unlock for Bitlocker for computer with a Trusted Platform Module (TPM); and
   eDrive support.

   Reverting back to UEFI mode will require a hard drive reformat. All data and personal settings will be lost. It is highly recommended that you back up your data before you revert back to UEFI mode.

   so if I run XP Reverting back to UEFI mode will require a hard drive reformat. windows 8 [64-bit]

   Posted 11 years ago #
2. 

   mikiem2
   Moderator

   My understanding is that the make or break issue is whether you have your hard drive formatted for MBR or GPT. Converting between the two is possible, e.g. with Paragon software, but in my *limited* experience not bullet proof. The couple of motherboards we have with UEFI bios don't let you switch modes with any setting -- they switch themselves depending on how the 1st disk accessed is formatted. That made installing win7 to a GPT disk real interesting -- the bios sees the setup DVD, goes into MBR mode, & because of that won't see the GPT formatted system disk. SO we wound up trying to use a USB stick setup using Microsoft's tool, which did eventually work after mucking around for several hours & finally finding out how to fix the USB stick Microsoft's tool had set up incorrectly.

   On this PC I rely on XP Pro as well as win7, so I can't use GPT -- there aren't any XP GPT drivers so XP can't find the files it needs to start on a GPT formatted system disk.

   I've also had problems with win8's boot menu, so I've always reverted to win7's... Win8's menu uses more graphics, & to do that it loads some graphics drivers -- I've had problems with the 2 previews [haven't tried the RTM] loading those drivers into RAM & causing problems with the display drivers for XP &/or win7 if/when I chose to start one of them. That's happened to me both with real hardware & VirtualBox VMs, so I don't think it's strictly an ATI graphics problem.

   Posted 11 years ago #
3. 

   Anonymous
   Unregistered

   look like Don't Reverting back to UEFI mode if you use XP or you kill it that is if you have XP and windows 8 on the same drive may be a new way to help kill off XP.

   Posted 11 years ago #

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