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 7386, 7586, and 7786 System BIOS

Restart required
This package contains the Dell system BIOS update. It is supported on Dell Inspiron 7386, 7586, and 7786 systems that run the Windows operating system. 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-00233 and INTEL-SA-00213. A security advisory is a statement when a product is impacted by a security vulnerability and a remedy is available.
To view all drivers for your Inspiron 7586 2-in-1, go to Drivers and downloads.
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File Format: CPG BIOS Executable for Windows/DOS
File Name: Inspiron_7386_7586_7786_1.5.0.exe
File Size: 15.54 MB
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.
To ensure the integrity of your download, please verify the checksum value.

Fixes & Enhancements

- Firmware updates to address security advisories INTEL-SA-00233(CVE-2018-12126,CVE-2018-12127,CVE-2018-12130 and CVE-2019-11091).
- Firmware updates to address security advisory INTEL-SA-00213 (CVE-2019-0090, CVE-2019-0086, CVE-2019-0091, CVE-2019-0093 and CVE-2019-0098).
- Fixed the issue that occurs during BIOS update when the system has Windows October 2018 Update in Chinese along with an account name in Chinese character.
- Fixed the issue where the thermal management mode cannot be changed in Dell Power Manager application.
- Fixed the issue where the battery power reduces due to heavy load in low temperature.
- Removed the pre-boot Intel RST Manager Optimized Defaults option.

- Supports BIOS Recovery from drives with Intel Optane Memory H10.
Read More


1.5.0, 1.5.0

Release date

27 Jun. 2019

Download Type

System 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.

File Format: External release notes
File Name: Inspiron_7386_7586_7786_1.5.0_external.txt
File Size: 1.22 KB
Format Description:
This file format contains plain text which can be viewed with a standard text editor.
To ensure the integrity of your download, please verify the checksum value.

By downloading, you accept the terms of the Dell Software License Agreement.

Additional details

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1.16.009 Aug. 2022
1.15.007 Jul. 2022
1.14.024 May 2022
1.13.006 Jan. 2022
1.12.009 Nov. 2021
1.11.024 Sep. 2021
1.10.019 Jul. 2021
1.9.009 Feb. 2021
1.8.027 Aug. 2020
1.7.119 Mar. 2020
1.6.014 Aug. 2019
1.4.004 Apr. 2019
BIOS Recovery 2
Dell Inspiron Astro
Updating the BIOS from Windows

Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.

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.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting and usage guide.

Drivers help and tutorials