Page 3 of 3 FirstFirst 123
  1.    25 Jul 2017 #21
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 12,949
    Windows 10 Pro

    Quote Originally Posted by Dude View Post
    Okay, thanks for testing it Kari
    I will continue testing it simply because theoretically there shouldn't be anything preventing Vista to boot from GPT disk on UEFI system.
      My ComputerSystem Spec
  2.    25 Jul 2017 #22
    Join Date : Nov 2014
    Posts : 26
    Build 9860
    Thread Starter

    I already have secure boot turned off since I have Linux installed and working using Easy BCD as a boot manager.
    Yes thanks guys for all the suggestions and testing. Just an idea to have several MS Windows versions bootable on the same machine!
    Already have VM with DOS, Windows 3.11, Windows 95. Windows 98 and Windows XP. Maybe the next step is to add Vista!
      My ComputerSystem Spec
  3.    25 Jul 2017 #23
    Join Date : Oct 2013
    Texas
    Posts : 10,778
    Windows 10 Pro X64

    Quote Originally Posted by Kari View Post
    I will continue testing it simply because theoretically there shouldn't be anything preventing Vista to boot from GPT disk on UEFI system.
    @Kari what is considered a class 3 system?
    Windows support of UEFI
    The following Windows editions include support for UEFI:
    Windows 8.1 and Windows® 8 support native UEFI 2.0 or later on 32-bit (x86), 64-bit (x64), and ARM-based PCs. They also support BIOS-based PCs, and UEFI-based PCs running in legacy BIOS-compatibility mode.

    Some features such as Secure Boot require UEFI 2.3.1 Errata C or higher.

    Windows Server 2012 R2 and Windows Server® 2012 support native UEFI 2.0 or later on 64-bit systems. Some features such as Secure Boot require UEFI 2.3.1.

    Windows® 7, Windows Vista® with Service Pack 1 (SP1), Windows Server® 2008 R2 and Windows Server® 2008

    Support UEFI 2.0 or later on 64-bit systems. They also support BIOS-based PCs, and UEFI-based PCs running in legacy BIOS-compatibility mode.

    Support on Class 2 systems running in legacy BIOS-compatibility mode by using a CSM, so they can use the legacy BIOS INT10 features.

    Are not supported on Class 3 systems, because these operating systems assume the presence of legacy BIOS INT10 support in the firmware, which is not available in a Class-3 UEFI implementation.

    Windows Server® 2008 R2 and Windows Server® 2008 also support EFI 1.10 on Itanium-based systems.
    Source UEFI Firmware
      My ComputerSystem Spec
  4.    25 Jul 2017 #24
    Join Date : Oct 2013
    Texas
    Posts : 10,778
    Windows 10 Pro X64

    Quote Originally Posted by warewasher2025 View Post
    I already have secure boot turned off since I have Linux installed and working using Easy BCD as a boot manager.
    Yes thanks guys for all the suggestions and testing. Just an idea to have several MS Windows versions bootable on the same machine!
    Already have VM with DOS, Windows 3.11, Windows 95. Windows 98 and Windows XP. Maybe the next step is to add Vista!
    That is an option, but if it can be done I have confidence Kari will figure it out
      My ComputerSystem Spec
  5.    25 Jul 2017 #25
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 12,949
    Windows 10 Pro

    Quote Originally Posted by Dude View Post
    @Kari what is considered a class 3 system?
    Class 3 means that UEFI does not support CSM (compatibility support module), therefore there's no backwards compatibility. Vista & W7 cannot run on Class 3 UEFI, missing CSM means the machine can't handle legacy bootloaders required by Vista & W7.

    In my case, the test laptop is a bit older and has Class 2, so that shouldn't be an issue.
      My ComputerSystem Spec
  6.    25 Jul 2017 #26
    Join Date : Nov 2014
    Posts : 26
    Build 9860
    Thread Starter

    Must be just a crazy fluke that I got Windows 7 installed and running on this same machine.
      My ComputerSystem Spec
  7.    25 Jul 2017 #27
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 12,949
    Windows 10 Pro

    Quote Originally Posted by warewasher2025 View Post
    Must be just a crazy fluke that I got Windows 7 installed and running on this same machine.
    I think it's rather that you have class 2.x UEFI, Seven and Vista do not have (should not have) any issues running from GPT disk on UEFI machines as long as UEFI is not class 3 or later.
      My ComputerSystem Spec

 
Page 3 of 3 FirstFirst 123


Similar Threads
Thread Forum
Multi-boot Win 10 raid 0 SSD Win 8.1, 7 Vista Error 0xc000000e
Hi, I have a multi boot system. My main new install is win 10 uefi/gpt Raid 0. I still have my previous installs of Win 10, 8.1, 7, Vista on 2 separate SSD's, in MBR I am using the Win 10 boot manager. Win 8.1 and vista boot fine. With the Win...
Installation and Upgrade
[Question]Need help fixing Win10 / Vista dual boot
I was running Win10 and partitioned off 25gb for Vista because I needed older OS to run some software. Anyhow, now I'm not sure how the hell I boot back to my main partition, because the Vista partition as taken seniority over the main partition. ...
Installation and Upgrade
Many BSODs in multi-boot system and most suggest hal.sys
I've had many BSODs on this computer in the five years I've had it. Under warranty, I had a new video card (Gforce GT220 replacing GT210), new motherboard (Gigabyte 970A-D3 replacing 870A-UD3) when Windows 7 was the only system. Since then, dual...
BSOD Crashes and Debugging
Windows 10 boot loop question - USB OS load vs. System Reset
PC worked great day one of my upgrade; games were running way better and I was happy with 10. However, last night I put the PC to sleep; when I woke up, I noticed PC on so I powered the monitor and the tool bar on the bottom left (cortana, windows...
General Support
Window 10 Multi-Display question
I was wondering if it is possible to have one desktop display on one screen with me using it. Meanwhile the other one have another desktop display with on the same pc wired to two mouse and keyboard be use by another person? If there a program for...
General Support
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 00:17.
Find Us
Twitter Facebook Google+ Ten Forums iOS App Ten Forums Android App



Windows 10 Forums