Gigabyte uefi dualbios installation windows 7. Installing Windows via UEFI BIOS

aaalekseyyy 30.11.2015

Deniska, what can I advise you?

1. Lower the BOOT UEFI version in the BIOS to the minimum (If you have Secure Boot, then disable it first).

2. Go from some Live CD with Windows 7, initialize your disk in GPT and partition the disk. I do not recommend making large partitions, because, for example, for a 1 TB partition, in case of information loss, just one pass of the Recovery program will take 17-24 hours, and to completely restore the information, it will take up to 3 days of continuous operation of the computer. It’s better to just create just one partition of 200-500 Mb, let the rest remain unallocated space, then you can further partition it as you need after installing the system.

Without operating system the laptop cannot work, so it is installed immediately after purchasing the device. Now some models are distributed with Windows already installed, but if you have a clean laptop, then all actions must be performed manually. There is nothing complicated about this, you just need to follow the instructions below.

UEFI replaced BIOS, and now many laptops use this interface. Using UEFI, you manage hardware functions and boot the operating system. The OS installation process on laptops with this interface is slightly different. Let's look at each step in detail.

Step 1: UEFI Setup

Disk drives are becoming less common in new laptops, and the operating system is installed using a flash drive. If you are going to install Windows 7 from a disk, then you do not need to configure UEFI. Simply insert the DVD into the drive and turn on the device, after which you can immediately proceed to the second step. Those users who use a bootable USB flash drive will need to follow a few simple steps:

1. Once you launch the device, you will immediately be taken to the interface. In it you need to go to the section "Additionally" by clicking on the corresponding key on the keyboard or selecting it with the mouse.



and opposite the point "USB Support" set the parameter "Full Initialization".



2. In the same window, go to the very bottom and go to the section "CSM".



3. There will be a parameter here "Launch CSM", it is necessary to transfer it to the state "Enabled".



4. Now will be displayed additional settings where you are interested "Boot Device Options". Open the pop-up menu opposite this line and select "UEFI Only".



activate item "Both, UEFI First". Next, return to the previous menu.



5. A section has appeared here. Go to it.



6. Against "OS type" please indicate "Windows UEFI Mode". Then return to the previous menu.



7. Still in the tab, go to the very bottom of the window and find the section "Boot Priority". Opposite here "Boot Option #1» indicate your flash drive. If you can’t remember its name, then just pay attention to its volume, it will be indicated in this line.



8. Click F10 to save the settings. This completes the process of editing the UEFI interface. Continue to the next step.

Step 2: Install Windows

Now insert the bootable USB flash drive into the slot or DVD into the drive and start the laptop. The disk is automatically selected first in priority, but thanks to the settings made earlier, now the USB flash drive will start first. The installation process is not complicated and requires the user to perform just a few simple steps:

The OS installation will now begin. It will last for some time, and all progress will be displayed on the screen. Please note that the laptop will restart several times, after which the process will automatically continue. At the end, the desktop will be configured, and Windows 7 will start. All you have to do is install the most necessary programs and drivers.

Step 3: Installing drivers and necessary software

Although the operating system is installed, the laptop cannot yet function fully. The devices lack drivers and also require several programs for ease of use. Let's look at everything in order:

Now that the laptop has the Windows 7 operating system and all the necessary important programs, you can safely begin to use it comfortably. Once the installation is complete, just go back to UEFI and change the boot priority to hard drive or leave everything as it is, but insert the USB flash drive only after the OS has started, so that the launch takes place correctly.

The BIOS system was developed more than 30 years ago. Many consider it to be an outdated look software, which is gradually being replaced by a newer system called UEFI, which is widely used on modern computers. UEFI has a large number of useful functions (which include, for example, quite effective counteraction to computer rootkits). But at the same time, it can also cause a lot of trouble, since distributions of some operating systems launch on it with difficulty, while others do not launch at all. And installing or reinstalling one operating system instead of another is sometimes very difficult.

So, for example, you have a laptop with Windows 8, which was installed at the time of purchase. But for some reason you decided to install Windows 7 as well. You try to do this in the usual way and discover that you cannot install one system instead of another, because the UEFI interface is installed on the laptop.

Very often, users ask the question: is it even possible to install or reinstall Windows 7 on a laptop over Windows 8 if the laptop has UEFI? The short answer to this question is yes, it can be done. But what will it take? This is what we will talk about.

If you do decide to change your system or simply install one on top of the other (so that you can use both environments if necessary), then as a precaution you should definitely do backup copy already installed system. Because recently, utilities designed for emergency OS recovery are practically not supplied by manufacturers in operating system kits. But if any problems occur, you may need to reinstall the previous system and only then try re-installing Windows 7.

What difficulties might there be?

So, what difficulties will a user face if he decides to change the operating system on a laptop with UEFI and install Windows 7 instead of the default Windows 8?

• Firstly, the BIOS has a UEFI-boot option, which is activated by default. It is responsible for the presence of a special service partition on the hard drive that supports the GUID Partiton Table (abbreviated as GPT). If such a partition is present in the system, then it will be impossible to install Windows 7 either from the original disk or from the image located on the flash drive. The following message will appear - Boot failure - a proper digital signature was not found. And if we were talking about a regular desktop computer, then there is a way to install or reinstall Windows 7 on a GPT disk. But in the case of a laptop, it no longer works.
• Secondly, if Windows 8 was previously installed on a laptop with UEFI, then the drive most likely already has a GPT table of contents. In this case, in order to install or reinstall Windows 7, you will need to convert the media to a more traditional Master Boot Record boot area (abbreviated MBR) instead of GPT. However, such a conversion can be done directly during the installation of Windows 7. More on this below.

Installation

Above we talked about problems with the UEFI-boot option. Therefore, before starting installation new system This option should be disabled on a laptop with UEFI. By the way, on some types of BIOS, instead of UEFI-boot, there may also be a Secure Boot item, which also needs to be deactivated. It is also advisable to take a closer look at the options with similar names, since there may be several options for the names of the options that are responsible for checking the compatibility of the bootloader certificate. Then everything done in BIOS changes should be saved.

Now let's move on to installing the operating system Windows systems 7 on a laptop with UEFI on top of the system already installed there. First you need a disk with the installer for this OS. Alternatively, you can create a bootable USB flash drive, from which you will then install the operating system. In any case, to start the installation you need to insert a disk or flash drive, open the boot menu and select the directory with the distribution from where the system can be installed or reinstalled. After this, the following message will appear.

Knowledgeable English language will understand that to start working, the system asks you to press any key on the keyboard.

After this, the Windows 7 installation wizard opens, with which you can either install or reinstall the OS. First, you can select the language, time format, keyboard layout, and then begin the installation by clicking the appropriate button.

When the installation wizard prompts you to select the drive on which the new operating system will be installed, you need to use the Shift and F10 key combination. After this, in the command line that appears, you need to do the following:

• Enter the diskpart command, then activate it by pressing the ENTER key;
• Enter the command disk list, press ENTER;
• Select section hard drive, which is planned to be converted to MBR format;
• Enter the command select disk x (x - in our case this is the number of the selected disk), press ENTER;
• Enter the clean command, which will clean the disk and remove all unnecessary partitions;
• Enter the convert mbr command, which will begin the conversion to the new format, press ENTER;
• Enter the exit command.

Recently, many motherboards, instead of the usual bios firmware, have an improved version called uefi. The program interface supports language selection and allows the use of new types hard drives with a capacity of more than 2 TB and contains other improvements. If you have the latest uefi bios firmware installed on your computer, then we will tell you how to install windows 7 in a few steps.

Advantages of uefi firmware over bios program

The advantage of uefi firmware is its extremely effective acceleration of loading of your operating system. In addition, uefi bios makes it easier to restore information, install updates, and have other advantages. Experienced users understand the difference between MBR and GPT disks, but you may want to keep your head down. Just remember that uefi is the real near future, and bios is obsolete.

An unpleasant feature of the uefi firmware

The saddest feature of this program is the inability to migrate from an installed Windows 8 operating system to a new computer. So if you have 8 pre-installed, then you won’t be able to install 7 so easily. The reason for this is the presence of a mandatory protocol, which Microsoft now requires from everyone licensed versions Windows - loading Secure Boot, which is missing in Windows 7 and is not provided in previously released versions of the OS. This can be solved by disabling this option in the program menu. Go to the Security section, disable Secure Boot.

Don't forget to turn on compatibility mode! The route is as follows: Advanced tab - System configuration - Boot Mod (maybe OS Mode Selection).

We set the found option as follows: change UEFI OS (or UEFI BOOT) to “CSM Boot” or “UEFI and Legacy OS”, “CMS OS”.

Before you begin, you either need to create a bootable USB flash drive yourself or have a licensed installation disk with this system. We recommend that distribution kit owners start reinstalling immediately, because the method of working with a bootable USB flash drive is described below in the instructions. Installation disk won't cause any problems.

Now let's configure uefi for installation from a flash drive.

Developed more than 30 years ago, the basic BIOS input/output system is significantly outdated by modern standards. It is being replaced by the UEFI specification, which significantly changes the established and familiar boot procedure. This article is intended for those who are interested in installing Windows 7 on a computer with UEFI.

Replacement for outdated BIOS

Extensible Firmware Interface (extensible firmware interface) was developed by Intel in 1998. The current version of the specification is called Unified Extensible Firmware Interface. Computers manufactured after 2010 are highly likely to work with the UEFI system. Unlike BIOS, codes of the new specification can be stored both on the motherboard chip and in a special section of the HDD.

UEFI works with the new GPD partitioning, which is capable of supporting HDDs larger than 2 TB and an unlimited number of partitions. In addition, the UEFI architecture is modular and therefore supports custom applications and drivers.

And, the most important part for this article: the new specification has a built-in download manager. Thanks to this, installing Windows 7 from USB or external HDD does not require third-party bootloaders.

Creating a bootable USB flash drive

To create a bootable flash drive, the Rufus 1.4.3 utility is considered. The program is notable for the fact that it does not require installation, is very small in size and is distributed completely free of charge. Of course, Rufus supports GPT HDD partitioning and work with the UEFI specification. The current version of the utility is available for download from the manufacturer's official website.

After launching the utility, you must specify the name of the flash drive that will be bootable ( Attention! All data from it will be permanently deleted!), file system(select FAT32), partition scheme and system interface (select GPT and UEFI). Opposite “create boot disk” you need to specify the path to the ISO image of Windows 7.

When all parameters are specified correctly, you can click on the “Start” button, and the process of preparing a bootable flash drive will begin. This will take some time, depending on the speed of your computer and the USB generation.

In addition to Rufus, you can use the WinSetupFromUSB program. It can also be downloaded from the manufacturer's website. The interface of these two programs is almost identical, so it makes no sense to consider the process of creating a bootable flash drive separately.

Installation Preparation

In order to start installation from a flash drive, you must first configure UEFI. To do this, you need to restart your computer and press F2 or Delete (depending on your motherboard, press both keys to be sure). After these steps, as in the case of the BIOS, you will be taken to the main control menu.

Press F7 or select the "Advanced" section. Next, go to the “boot” menu, select the “USB support” option and install Full Initialization. In the "secure boot" menu, set "Windows uefi mode".

Now open the Compatibility Support Module (or CSM) menu and in the “launch CSM” item select “enabled”. Open additional options and in the “boot device options” select “uefi only”. This item will allow you to filter flash drives and HDDs that cannot work with your specification. In the “boot from storage devices” column, select “both, uefi first”.

Now all you have to do is specify the boot priority. Place the bootable USB flash drive in the first place, and your HDD in the second place. The settings are completed, save them with the F10 key, confirm the decision, and the computer will restart.

Windows installation

If the previous steps were completed correctly, after the computer is rebooted, the standard installation of the operating system from the flash drive will begin. Click “next”, “install”, accept the user agreement, select full installation.

Now you need to call command line combination Shift + F10. Next, enter the following sequence of commands:

diskpart (after each command you must press the enter button)
seldis 0
clean
convert gpt
exit
exit

More details at this point. Using these commands, you will delete all data from the HDD, mark it as GPD and format it for subsequent system installation. Click "update" and "next".

The installation of Windows 7 on the HDD of your personal computer will begin. During the installation process, the PC will be rebooted several times, after which you will only need to specify its name and password, time zone and set a list of users. Once the installation is complete, Microsoft Update will download and install all the necessary patches and drivers, and you can use your computer.