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 Installed 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 for 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 computer's system board. It controls the keyboard, monitor, disk drives and other devices. This update addresses the Intel security advisories INTEL-SA-00185 and INTEL-SA-00191.
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Fixes & Enhancements

Fixes:
- Fixed an issue with Secure Boot Option ROM Signature Verification.
- Firmware updates to address security advisory INTEL-SA-00185 (CVE-2018-12188 CVE-2018-12190 CVE-2018-12191 CVE-2018-12192 CVE-2018-12199 CVE-2018-12198 CVE-2018-12200 CVE-2018-12187 CVE-2018-12196 CVE-2018-12185).
- Firmware updates to address security advisories INTEL-SA-00191(CVE-2018-12201, CVE-2018- 12202, CVE-2018-12203, CVE-2018-12205).

Enhancements:
- Enhanced the user experience for Thermal Management in Dell Power Manager.
Read More

Version

1.4.0, 1.4.0

Release date

04 Apr 2019

Download Type

System BIOS

Category

BIOS

Importance

Critical
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.
Available formats

File Format: CPG BIOS Executable for Windows/DOS
File Name: Inspiron_7386_7586_7786_1.4.0.exe
File Size: 15.53 MB
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.
To ensure the integrity of your download, please verify the checksum value.
MD5:
0ac873b55b12a7be238e29e1c9ec2336
SHA1:
e2eb13297575daa79a0e7fa93cd74bf64ce61e9f
SHA-256:
ff927e8bf822a49f2c3059964ab50324d6047fa5f532c5e23be43c1e75618f00

File Format: External release notes
File Name: Inspiron_7386_7586_7786_1.4.0_external.txt
File Size: 1.23 KB
This is a large file. Depending on your connection speed, it may take some time to download.
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.
MD5:
3382daf88d111e8d93e7bd742912177c
SHA1:
4e6a3a8e2ed9588863a120edac82cdf20903ff86
SHA-256:
54301726809bbdab01437271336934e2fa78cd53e2bd1ebd646e3c8c880d7a0a

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

Additional details

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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 guide

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