The Basic Input/Output System is a lightweight software that is stored to a small chip on the Dell motherboard. The BIOS affects how the hardware in the computer behaves or performs, and it provides support for certain devices or features. If a bug exists in the BIOS software, it can cause a Dell laptop to shut down unexpectedly. Flashing, or updating, the BIOS can restore full function to the laptop, fixing the bugs that cause the Dell PC to shut down by itself.
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Connect the AC adaptor to the power jack. Plug the other end of the adaptor into a power outlet.
Hover the mouse over the Power Options icon, located on the right side of the taskbar. Confirm that the popup message reads "Charging" or "Fully Charged" before proceeding.
Go to the Dell Support website. Click "Find Drivers, BIOS, and other updates."
Click "Select Model." Select the Dell laptop's product family, product line and product model. Click "Confirm."
Choose the OS from the "Operating System" menu. Select "BIOS" from the category menu.
Look under "Release Date" to find the most recent version of the BIOS. Click "Download." Click "Save" or "Save As."
Select "Desktop" from the left panel in the file browser. Click "Save." Minimize all windows to go to the desktop.
Double-click the BIOS file. Follow the on-screen instructions to fix the BIOS and prevent the Dell laptop from shutting down without warning.
Tips and warnings
- Keep the power adaptor connected to the Dell laptop while updating the BIOS. Don't touch the computer or turn off the power while the PC is updating, as it could damage the computer and prevent it from booting.
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