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Dell Precision 5520 Owner's Manual
Updating the BIOS using the USB drive in Windows
About this task
CAUTION If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an unnecessary operating system re-install. For more information on this subject, see Knowledge Article:
https://www.dell.com/support/article/sln153694
Steps
- Follow the procedure from step 1 to step 6 in Updating the BIOS in Windows to download the latest BIOS setup program file.
- Create a bootable USB drive. For more information, see the knowledge base article 000145519 at www.dell.com/support.
- Copy the BIOS setup program file to the bootable USB drive.
- Connect the bootable USB drive to the computer that needs the BIOS update.
- Restart the computer and press F12 .
- Select the USB drive from the One Time Boot Menu.
-
Type the BIOS setup program filename and press
Enter.
The BIOS Update Utility appears.
- Follow the on-screen instructions to complete the BIOS update.
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