You will want to completely reinstall Windows 10 or any other operating system on your PC ? Or you want to optimize the performance of your hardware ? To do this, it will be necessary to access the BIOS or UEFI of your machine. To learn how to take you there, follow the guide.

With the launch of Windows 10, and even before him with Windows 8, Microsoft wanted to make its operating system the one of the fastest in terms of boot time. Once the machine was powered up, on some large configurations and function of the programs that run as soon as the launch of Windows 10, you can access the Desktop in less than ten seconds. If we perceive from the outset the advantage involved by this time reduced start-up, there is still a drawback : the system has a tendency to prevent you from accessing the settings of the UEFI or BIOS of the PC. In this case, this is hardly practical for those who want to set up the nerve center of the computer, the same place that allows you to manage the hardware components of the PC the device boot order, etc Here so as to remedy the problem and access the BIOS or UEFI on the PC.

Windows 10

Access the UEFI

In order to enable everyone to reach the settings of the UEFI-based PC, Microsoft has implemented a small option within the operating system. Depending on the age of your hardware configuration, it may be absent. If this is the case, go to the second part of this article. If not, here’s how to proceed :

  1. Since Windows 10, press the Start button and click on the Settings icon (you will find it easily, it is a toothed wheel).
  2. Then go to the update function and safety.
  3. In the left pane, go to Recovery.
  4. Since the advanced Startup section, press the Restart now button.
  5. Then click Troubleshooting, and then click advanced Options.
  6. You should see an option called Change the firmware settings UEFI. Click on it. If this is not the case, as mentioned above, refer to the second part of this article.
  7. After clicking on the Restart button, you should have access to the settings of the UEFI of your motherboard. You have, among others, the ability to change the order of the drives, an option crucial if you want to boot on a USB key or an optical disc.

To access the BIOS or the UEFI without going through Windows 10

The second solution to access the settings for UEFI or Bios is much more classic. In contrast, and as Windows 10 starts up much too quickly, it may need to take a few times to make it work this method :

  1. When you start the PC, press at times more one of the following keys : [F1], [F2], [F8], [F10] or [Delete], it all depends on the manufacturer of your motherboard. On very old models, it is necessary to press simultaneously the keys [CTRL] + [ALT] + [ESC]. You must do this “before” that the logo of loading of Windows to appear, otherwise it is too late and it should be restart the machine.
    2. Therefore, you have access to all the settings of your BIOS or your UEFI. Note that some changes may result in a malfunction of the PC if they are poorly managed. The good news is that it is possible to restore at any time the default configuration, still accessing the BIOS or UEFI.