How do I manually add boot options?
From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Boot Options > Advanced UEFI Boot Maintenance > Add Boot Option and press Enter.If you need to access the Boot menu, you can press the F8 key before the Windows starts. You can also open the Boot menu from the Start menu if you're already logged into your device.How to Fix 'BOOTMGR Is Missing' Errors

  1. Restart the computer.
  2. Check your optical drives, USB ports, and floppy drives for media.
  3. Check the boot sequence in BIOS and make sure the correct hard drive or other bootable device is listed first, assuming you have more than one drive.
  4. Reseat all internal data and power cables.

How do I add boot options to boot from USB : Press the Power button on your computer. During the initial startup screen, press ESC, F1, F2, F8, or F10 (depending on the company that created your version of BIOS, a menu may appear). When you enter BIOS Setup, the setup utility page will appear. Using the arrow keys on your keyboard, select the BOOT tab.

How do I fix no boot options

If the boot sequence does not show up, select legacy BIOS mode and try to install Windows. Then select UEFI BIOS mode, and check the boot sequence. Reset the BIOS (press F9 to load defaults, press F10 to save and exit). If the hard disk is not recognized, try cleaning the disk.

How to add UEFI boot option for USB : To access the UEFI menu, create a bootable USB media:

  1. Format a USB device in FAT32 .
  2. Create a directory on the USB device: /efi/boot/
  3. Copy the file shell. efi to the directory created above.
  4. Rename the file shell.efi to BOOTX64.efi.
  5. Restart the system and enter the UEFI menu.
  6. Select the option to Boot from USB.

Fix the MBR in Windows 10

  1. Boot from the original installation DVD (or the recovery USB)
  2. At the Welcome screen, click Repair your computer.
  3. Choose Troubleshoot.
  4. Choose Command Prompt.
  5. When the Command Prompt loads, type the following commands: bootrec /FixMbr bootrec /FixBoot bootrec /ScanOs bootrec /RebuildBcd.


In most computers, the Windows Boot Manager can be accessed by pressing the 'F8' key as soon as your computer starts.

How do I fix no USB boot option

  1. Restart the system into the BIOS.
  2. Navigate to the Boot Options menu and ensure the Boot Mode is set to EFI (or UEFI).
  3. Make sure that the USB Boot Priority is enabled.
  4. Save the changes and exit.

To do this:

  1. Select Start > Settings > Update & security > Recovery.
  2. Under Advanced startup, select Restart Now.
  3. Under Choose an option, select Troubleshoot > Advanced Options > UEFI Firmware Settings, and then select Restart.

Make sure your Boot Order is set to the correct hard drive, your RAM is recognized, and that your CPU isn't overheating (if it's above 90 degrees Celsius in the BIOS, something is definitely wrong). You might also turn off the Fast Boot feature, in case a recent Windows Update is conflicting with it.

To do this, you'll need to insert the USB drive into your computer and then press the power button. Once the computer has turned on, press the 'F11' or 'Delete' keys repeatedly until you reach the boot menu. From here, select 'Boot from USB' and then choose your drive from the list of available options.

How do I fix a corrupted boot : On the Install Windows screen, select Next > Repair your computer. On the Choose an option screen, select Troubleshoot. On the Advanced options screen, select Startup Repair. After Startup Repair, select Shutdown, then turn on your PC to see if Windows can boot properly.

How do I fix boot failure :

  1. 1 Check the power supply. The first thing to do is to make sure your PC is getting enough power.
  2. 2 Listen for beep codes.
  3. 3 Remove or replace hardware components.
  4. 4 Boot into safe mode or recovery mode.
  5. 5 Scan for viruses and malware.
  6. 6 Repair or reinstall the operating system.
  7. 7 Here's what else to consider.

How do I add Windows Boot Manager to UEFI

I hope it helps.

  1. – Navigate to settings.
  2. – Select Update & security.
  3. – Select Recovery from the left menu.
  4. – Click Restart Now under Advanced startup.
  5. – Click Troubleshoot.
  6. – Click Advanced options.
  7. – Select UEFI Firmware Settings.
  8. – Click Restart.


Common keys used to access the boot menu include F12, F11, Esc, and Del. When you turn on your computer, pay attention to the screen for any instructions or prompts that tell you which key to press to access the boot menu.To do this, you'll need to insert the USB drive into your computer and then press the power button. Once the computer has turned on, press the 'F11' or 'Delete' keys repeatedly until you reach the boot menu. From here, select 'Boot from USB' and then choose your drive from the list of available options.

How to enable USB boot in BIOS : Required Options

  1. Find your BIOS's Boot Options menu.
  2. Select the appropriate Boot Media Device (CD/DVD-ROM drive OR USB) as the first boot device of your computer.
  3. Save the changes of the settings.
  4. Shut off your computer.
  5. Insert the CD/DVD/USB boot media.
  6. Start your computer to boot from the CD/DVD/USB.