When installing Windows from a USB flash drive, the need to boot the computer from a CD, and in many other cases, you need to configure the BIOS so that the computer boots from the correct media. In this article, we will talk about how to put a boot from a flash drive into BIOS. It may also come in handy: How to put a boot from a DVD and CD into the BIOS .
Update 2016: in the manual, methods were added to put the boot from the USB flash drive into UEFI and BIOS on new computers with Windows 8, 8.1 (which is also suitable for Windows 10). In addition, two ways to boot from a USB drive are added without changing the BIOS settings. Options for changing the boot device order for older motherboards are also provided in the manual. And one more important point: if loading from a USB flash drive on a computer with UEFI does not occur, try disabling Secure Boot .
Note: The end also describes what to do if you can’t access BIOS or UEFI software on modern PCs and laptops. You can read about how to create bootable flash drives here:
Using Boot Menu to boot from flash drive
In most cases, installing a boot from a USB flash drive into BIOS is required for some one-time task: installing Windows, checking your computer for viruses using LiveCD, resetting your Windows password.
In all these cases, it is not necessary to change the BIOS or UEFI settings, it is enough to call the Boot Menu (boot menu) when you turn on the computer and select the USB flash drive as the boot device once.
For example, when installing Windows, you press the desired key, select the connected USB drive with the distribution of the system, start installation - setup, copy files, etc., and after the first reboot occurs, the computer will boot from the hard drive and continue the installation process in the factory mode.
I wrote in great detail about entering this menu on laptops and computers of various brands in the article How to enter the Boot Menu (there is also a video instruction there).
How to get into the BIOS to select boot options
In different cases, in order to get into the BIOS setup utility, you need to perform essentially the same actions: immediately after turning on the computer, when the first black screen appears with information about the installed memory or the logo of the computer or motherboard manufacturer, click the a button on the keyboard - the most common options are Delete and F2.
Press the Del key to enter BIOS
Typically, this information is available at the bottom of the initial screen: “Press Del to enter Setup,” “Press F2 for Settings,” and the like. By pressing the right button at the right time (the sooner the better - this must be done before the operating system starts loading) you will be taken to the setup menu - BIOS Setup Utility. The appearance of this menu may vary, consider a few of the most common options.
Changing boot order in UEFI BIOS
On modern motherboards, the BIOS interface, or rather, UEFI software, as a rule, is graphical and, perhaps, more understandable in terms of changing the order of boot devices.
In most options, for example, on Gigabyte (not all) or Asus motherboards, you can change the boot order by simply dragging the disk images with the mouse accordingly.
If this is not possible, look in the BIOS Features section, under Boot Options (the last item may be located elsewhere, but the boot order is set there).
Configuring boot from a flash drive in the AMI BIOS
Please note that in order to do all the described actions, the USB flash drive must be connected to the computer in advance, before entering the BIOS. In order to install the boot from the USB flash drive in the AMI BIOS:
- From the top menu, press the right key to select Boot.
- After that, select the “Hard Disk Drives” punt and in the menu that appears, press Enter on the “1st Drive” (First Drive)
- In the list, select the name of the flash drive - in the second picture, for example, this is Kingmax USB 2.0 Flash Disk. Press Enter, then Esc.
- Select the item “Boot device priority”,
- Select “First boot device”, press Enter,
- Again, indicate the flash drive.
If you need to boot from the CD, then specify the DVD ROM drive. Press Esc, in the menu from the top from the Boot item, move to the Exit item and select “Save changes and exit” or “Exit saving changes” - to ask if you are sure that you want to save the changes made, you will need to select Yes or type “Y” from the keyboard, then press Enter. After that, the computer will reboot and start using the USB flash drive, disk, or other device you have selected to boot.
Booting from a flash drive in BIOS AWARD or Phoenix
In order to select the device to boot into the Award BIOS, select “Advanced BIOS Features” in the main settings menu, then press Enter with the First Boot Device option selected.
A list of devices from which you can boot will appear - HDD-0, HDD-1, etc., CD-ROM, USB-HDD and others. To boot from a USB flash drive, you need to install USB-HDD or USB-Flash. To boot from a DVD or CD-ROM. After that, we go one level up by pressing Esc and select the menu item "Save & Exit Setup" (Save and exit).
Configuring boot from external media in H2O BIOS
To boot from a flash drive in the InsydeH20 BIOS, which is found on many laptops, in the main menu using the "right" key, you need to go to the "Boot" item. Set External Device Boot to Enabled. Below, in the Boot Priority section, use the F5 and F6 keys to set the External Device to the first position. If you need to boot from a DVD or CD, select Internal Optic Disc Drive.
After that, go to the Exit item in the menu above and select “Save and Exit Setup”. The computer will reboot from the correct media.
Boot from USB without entering BIOS (only for Windows 8, 8.1 and Windows 10 with UEFI)
If one of the latest versions of Windows is installed on your computer, and the motherboard is equipped with UEFI software, then you can boot from a USB flash drive without even entering the BIOS settings.
To do this: go to the settings - change the computer settings (through the panel on the right in Windows 8 and 8.1), then open “Update and recovery” - “Recovery” and click the “Restart” button in the “Special boot options” item.
On the “Select an action” screen that appears, select “Use device. USB device, network connection or DVD. ”
On the next screen you will see a list of devices from which you can boot, among which should be your flash drive. If suddenly it is not there - click "View other devices". After selection, the computer will reboot from the USB drive you specified.
What to do if you can’t get into BIOS to install a boot from a USB flash drive
Due to the fact that modern operating systems use fast boot technologies, it may turn out that you simply cannot get into the BIOS to somehow change the settings and boot from the desired device. In this case, I can offer two solutions.
The first is to log into UEFI software (BIOS) using the special Windows 10 boot options (see How to log into BIOS or UEFI Windows 10 ) or Windows 8 and 8.1. How to do this, I described in detail here: How to enter the BIOS in Windows 8.1 and 8
The second is to try disabling the fast boot of Windows, and then go into the BIOS in the usual way, using the Del or F2 key. To disable fast boot, go to the control panel - power. In the list on the left, select "Power Button Actions."
And in the next window, remove the option “Enable quick launch” - this should help in using the keys after turning on the computer.
As far as I can tell, I described all the typical options: one of them should definitely help, provided that the boot drive itself is in order. If something doesn’t work out, I’m waiting in the comments.