Operating system boot mode change



Operating system boot mode change? (when upgrading from windows 8 to windows 7)

I want to upgrade my laptop from windows 8, to windows 7. Yes to me, that's an excellent upgrade. I tried windows 8, and its not for me. I like windows 7, so that's what I'm going to use. No I am not interested in windows 10. The laptop is an HP G6 I bought new in . Haven't used it much, but I recently started using it again due to work and school changes.

But if I didn't know better, I'd say this damn thing is resisting me at every turn. I couldn't even get it to boot from the CD drive to install windows 7 from a disc. So I took the HDD out of the laptop, put it in my gaming rig, and formatted it. Hoping to kill all this HP recovery and help BS that it kept wanting to go into instead of the bios. What happened to the days where you just selected a boot device, and it did what you told it to do?

So I went ahead and installed Windows 7 on the HDD, with the HDD still in my gaming rig. Once it was finished, I took it out and popped it back into the laptop. The laptop then said Selected boot image did not authenticate . It sounds like they really don't want you ditching windows 8. So I read up on that, and it said to go into the bios, and turn off something called secure boot . I did that, and saved and exited the bios. Now I'm getting just a black screen with this message saying:

Operating system boot mode change

A change to the operating system Secure Boot mode is pending. Please enter the pass code displayed below to complete the change.

Operating system boot mode change (021)

2954 + ENTER to complete the change

ESC - Continue without change

But it gives no indication of where this number is to be entered. Its not on that screen, because you can't enter anything there. All it will actually let you do, is press escape and throws you back into the This boot manager did not authenticate loop. Which just shuts off the computer after you hit Ok . Sigh. is this by design? Are they deliberately foiling attempts to install windows 7, for a reason? I have never in my life had this much trouble installing a new operating system. Anyone have any idea how to make all this stop, and get it to just accept the new operating system?

If you had a windows 7 disc you should have just installed it from the disc within windows 8 rather than format and stuff
Some laptops bioses dont work at all and ignore boot priorities
But if you can turn off boot priorites and set the dvd drive as the default boot device it will either boot to the disc or it will say push any key to boot to the dvd drive otherwise you may not have a bootable windows disk and instead have an upgrade disk which has no boot data and requires to be oened within windows to install it
. sorry on a phone

I did that, but then what do you do? That is my problem. I also enabled legacy support.

I just started spamming escape, and it let me boot into windows 7 finally. It gave me a little menu and I just selected Boot OS HDD normally , and as if by magic, it chose to start working.

F@#K you intel for this UEFI BS. Its all due to the UEFI, which is their attempt to save us from ourselves, and force windows 8 and above on us.

I still have no guarantee that it will permanently boot up, as the bios settings don't like to stick. I'm scared to even turn off the computer, as I may never be able to get it to load Windows 7 again.

Alright well I finally managed to get it to boot into windows 7, on the desired laptop. But it still doesn't just jump right into loading windows 7. You have to go through this whole process which involves going into the bios every time, and turning on legacy support. The setting doesn't stick, so you have to do it every time. It just turns Legacy support right back off, when you turn off the computer. So from the computer being off with the lid closed, this is what you have to do:

1. Open the lid and press the power button.

2. Get some weird error message saying that you need to Install an OS on your Hard drive .

3. Press F10 and go into the bios. Now go over to System configuration and go down to Boot options .

4. Go into boot options, and turn on legacy support. This turns OFF Secure boot , by default. You can't mess with secure boot now.

5. Press F10, and save and exit the bios. Computer restarts.

6. Get that same dumb error message, telling you to that you need to install an OS on the hard drive. Windows 7 is already installed of course.

8. A few options appear, of things you can boot into. I'd be really surprised if any of them actually worked if you tried. Anyway for some strange reason, you use the arrow keys and go down to System Recovery and press enter.

9. Winows 7 loads, and functions normally.


What is causing all of this? Why won't windows 7 just load up as soon as you hit the power button? Why do I have to go through all these steps, just to get it to boot normally?
Edited by PhotonFanatic - 1/19/16 at 4:42pm

Boot to UEFI Mode or Legacy BIOS mode

Last Updated: 5/4/

Boot into UEFI mode or legacy BIOS-compatibility mode when installing Windows from your USB, DVD, or network location.

If you install Windows using the wrong mode, you won’t be able to use the features of that firmware mode without reformatting the drive.

Select the firmware mode during bootup

Boot the PC. As the firmware starts to run, press the key that opens the boot device menu. For example, press the Esc, F2, F9, F12, or other key to enter the firmware or boot menus.

On the boot device menu, select the command that identifies both the firmware mode and the device. For example, select UEFI USB Drive or Network - BIOS .

Note
You might see separate commands for the same device. For example, you might see UEFI USB Drive and BIOS USB Drive. Each command uses the same device and media, but boots the PC in a different firmware mode.

Use any of these methods to help make sure that Windows is installed using the correct firmware mode

If you install Windows by using Windows Setup or the Windows installation DVD, use preformatted hard drive on your destination PCs. Use the GPT file format for UEFI mode, or the MBR file format for BIOS mode. When Windows Setup runs, if the PC is booted to the wrong mode, Windows will fail to install. For more info, see Windows Setup: Installing using the MBR or GPT partition style .

You can remove the UEFI or BIOS boot files from either Windows PE or Windows Setup. For example, if you only include boot files for UEFI mode on the Windows installation DVD, and during manufacturing you accidentally attempt to boot the PC to BIOS mode, the PC will immediately fail to boot, and you can begin troubleshooting right away.

UEFI. To prevent Windows Setup or Windows PE from booting in BIOS mode, remove the bootmgr file on the root of the media.

BIOS. To prevent Windows Setup or Windows PE from booting in UEFI mode, remove the efi folder on the root of the media.

Related topics

Enable Legacy Boot Mode

On newer Windows 8 PCs using the UEFI or EFI boot standard, many PC manufacturers require you to take certain steps to allow you to boot into recovery tools and non-EFI or non-UEFI operating systems. This guide covers some of the common ways to enable you to boot into legacy mode on your PC or laptop, letting you boot into recovery media and setup CDs for other operating systems like Linux or older versions of Windows. These instructions as well as the instructions covering disabling Secure Boot are essential to booting into 3rd party CDs and DVDs.

Legacy Boot Mode

With newer Windows 8 PCs that are designed with UEFI support, the BIOS or firmware often has an option that specifies if the computer can boot into regular operating systems and recovery tools, or if it can boot exclusively into newer UEFI operating systems and environments. The regular way of booting into software and operating systems (such as Windows XP or Vista, Linux, and recovery tools like Easy Recovery Essentials for Windows ) is called #8220;Legacy Boot#8221; and must sometimes be explicitly enabled/allowed in the BIOS settings.

Enabling Legacy Boot Mode

On PCs and laptops from most manufacturers, including Dell, HP, Asus, Acer, Toshiba, Lenovo, and more, Legacy Boot can be turned on or allowed from the EFI setup/configuration feature, available immediately after turning on your PC. On many computers, it isn#8217;t necessary to enable Legacy Boot, but if you#8217;re having trouble booting from a bootable CD/DVD or USB, then you#8217;ll probably need to follow the instructions below to enable your PC or laptop to boot in Legacy Mode.

Below are instructions for turning on Legacy Boot support on most PCs and laptops, as well as specific instructions for certain brands of laptops. On most EFI computers, you#8217;ll need to access EFI setup immediately after turning on your PC in order to see the option of turning on Legacy Boot, usually as an option under the boot options section of the BIOS configuration.

Entering the UEFI setup

Notice the key guide in the top-right corner.

Immediately after powering up your PC, as soon as the manufacturer logo (e.g. Dell, Lenovo, HP, Toshiba, Samsung, ASUS, Acer, Gateway, etc.) shows up on your BIOS splash screen, you will have the option of pressing a special key. This key changes from PC to PC. it all depends on your PC#8217;s make and model.

Typically, you will see a brief note at the bottom or top of the screen indicating what the key is. One such screen is visible to the right, note the legend in the top-right corner indicating F2 will start the BIOS setup and F12 will present the boot selection menu.

Some common options include the F2. F8. F12. and Del keys. However, it could be any of the one hundred other keys on your keyboard.

Turning on Legacy Boot Support

Once inside the UEFI setup and configuration section, you#8217;ll be presented with a number of options and parameters that can be configured for the firmware environment. The option you#8217;re looking for has many names, depending on the make and model of the PC or laptop and the EFI firmware. Some of the possible setting names you#8217;re looking for will include, the bold values are what should be selected.

Boot Device Control

UEFI/BIOS Boot Mode

Источники: http://www.overclock.net/t/1588372/operating-system-boot-mode-change-when-upgrading-from-windows-8-to-windows-7, http://msdn.microsoft.com/fr-ch/windows/hardware/commercialize/manufacture/desktop/boot-to-uefi-mode-or-legacy-bios-mode, http://neosmart.net/wiki/enable-legacy-boot-mode/






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