Do not turn off your computer or disconnect from the power source while updating the BIOS as this could harm your computer. During the update, your computer will restart and you may briefly see a black screen.
Before updating, please read the installation instructions and important information noted below.
Dell Inspiron 5490 AIO/5491 AIO/7790 AIO System BIOS
Restart requiredInstalledThis file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This package contains the Dell system BIOS update. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices. This update addresses the Intel security advisories INTEL-SA-00241, INTEL-SA-00270, INTEL-SA-00220, INTEL-SA-00260, and INTEL-SA-00254. A security advisory is a statement when a product is impacted by a security vulnerability and a remedy is available.
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Fixes & Enhancements
Fixes: - Fixed a BIOS Setup configuration issue that occurs after clearing the CMOS. - Removed the IpSec driver and application. - Firmware updates to address security advisory INTEL-SA-00241 (CVE-2019-11105, CVE-2019-11104, CVE-2019-11103, CVE-2019-11090, CVE-2019-0165, CVE-2019-11087, CVE-2019-11101, CVE-2019-11106, and CVE-2019-11147). - Firmware updates to address Intel security advisories INTEL-SA-00270 (CVE-2019-11135). - Firmware updates to address Intel security advisories INTEL-SA-00220 (CVE-2019-0124), INTEL-SA-00260 (CVE-2019-0154), and INTEL-SA-00254 (CVE-2019-0185). - Fixed an issue with preboot TPM detection and error logging. - Fixed the issue where the system does not show the correct memory space when single memory is installed. - Fixed the issue where the system does not display the Dell logo during PXE boot.
Enhancements: - Added an enhancement to extend the BIOS password configuration measurements into the TPM. - Added a new feature to automatically suspend BitLocker before upgrading the firmware. After the firmware upgrade is complete, BitLocker is automatically enabled. - Added BIOSConnect feature which enables connection to Dell.com without an operating system. This feature also enables downloading a recovery image from the cloud through wired or wireless connection. - Enhanced the BIOS recovery function. - Updated the option Change Boot Mode Setting in BIOS.
Dell Technologies highly recommends applying this important update as soon as possible. The update contains critical bug fixes and changes to improve functionality, reliability, and stability of your Dell system. It may also include security fixes and other feature enhancements.
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
The following notes apply to all the BIOS installation methods: Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com. Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
Updating the BIOS from Windows
Download and Installation 1. Click Download File, to download the file. 2. Click Save to save the file to your hard drive. 3. Browse to the location where you downloaded the file and double-click the new file. The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.
Updating the BIOS from DOS (Non-Windows users)
Installation Note: You must provide a bootable USB drive. This executable file does not create the DOS system files. 1. Copy the downloaded file to a bootable USB drive. 2. Power on the system and then Press the F12 key. 3. Select USB Storage Device and boot to the DOS prompt. 4. Run the file by typing following command. For example: C:\ Inspiron_5490_X.Y.Z.exe Where C is the drive letter of the USB device where the executable file is located and Inspiron _5490_X.Y.Z.exe is the name of the downloaded file. The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.
Updating the BIOS from DOS with UEFI boot mode enabled (Non-Windows users, Load Legacy Option Disabled)
Installation 1. Copy the downloaded file to a bootable DOS USB drive. 2. Power on the system and then go to BIOS Setup by pressing the F2 key. 3. Go to General > Boot Sequence > Boot > Boot List Option. 4. Change UEFI to Legacy of Boot List Option. 5. Go to Exit > Save Changes and reboot system. 6. Press F12 and then select USB Storage Device and boot to the DOS prompt. 7. Run the file by typing the file name. The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, the system restarts again. 8. Go to BIOS Setup by pressing the F2 key and go to General > Boot Sequence > Boot > Boot List Option. 9. Change Legacy to UEFI Boot Option. 10. Go to Exit > Save Changes and reboot the system.
Updating the BIOS from BIOS Boot Menu (independent of operating system)
Installation 1. Copy the downloaded file to a USB drive. The USB drive does not need to be bootable device. 2. Insert the USB drive into any USB port. 3. Power on the system. 4. At the DELL logo screen, press F12 to access the one-time boot menu. 5. Select BIOS Flash Update in the Other Options section. 6. Click the ... button to browse the USB drive to locate the downloaded file. 7. Select the file and click Ok. 8. Verify the existing system BIOS information and the BIOS update information. 9. Click Begin Flash Update. 10. Review the Warning message and click Yes to proceed with the update. The system restarts and displays a progress bar at the Dell logo screen. The system restarts again when the update is complete.
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting guide