How to Update Your BIOS
Without Bricking Your PC
The process is straightforward for Dell, HP, and Lenovo — their apps handle most of it automatically. For ASUS and desktop boards, there are a few extra steps that matter.
Select your brand below and follow the exact steps for your PC — takes under 10 minutes.
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Select Your Brand
Open Dell Update or go to dell.com/support
Enter your Service Tag (sticker on the bottom of the PC). Navigate to Drivers & Downloads → BIOS category → download the latest .exe file.
Run the .exe file as Administrator
Right-click the downloaded file → “Run as administrator.” The Dell BIOS update utility will open and verify your hardware automatically.
Do not interrupt — wait for the full restart
Your PC will restart into a special update environment. A progress bar appears on screen. Takes 2–5 minutes. Do not press any keys or disconnect power.
Verify after restart: Win + R → msinfo32
Check that “BIOS Version/Date” matches the version you installed. If it matches, you’re done.
Open HP Support Assistant
Search for it in the Start menu. It automatically detects available BIOS updates for your exact model — the safest method for HP devices.
Or go to support.hp.com manually
Enter your product number (sticker on bottom of laptop). Select Software and Drivers → BIOS category → download latest version.
Run the update and wait
HP’s tool restarts your PC into update mode. Total time 3–8 minutes. Keep the PC plugged in throughout.
Verify in msinfo32 after reboot
Confirm the BIOS Version/Date field shows the new version. Done.
Open Lenovo Vantage
Go to Device → System Update. It detects available BIOS updates for your exact model. This is the safest and most reliable path for ThinkPad, IdeaPad, and Legion.
Or download manually from support.lenovo.com
Enter your serial number. Look for BIOS/UEFI updates in the drivers section. Download the correct .exe for your model.
Run the update and follow the wizard
Lenovo Vantage will refuse to proceed if battery is too low — this is intentional protection. The update runs during the restart cycle; ThinkPads show a progress indicator in the top-right corner.
Go to asus.com/support and find your exact model
Download the BIOS .zip file. Inside you’ll find the ROM file needed for the update.
For desktops: Use EZ Flash in BIOS settings
Copy the ROM file to a FAT32-formatted USB drive. Restart → press Delete or F2 → navigate to Tool → EZ Flash Utility → select the USB → select the file.
For ASUS laptops: Use WinFlash utility
Download WinFlash from the ASUS support page. Run it in Windows and point it to the ROM file. Takes 3–7 minutes.
Find your exact motherboard model
Press Win + R → type msinfo32 → note “BaseBoard Product” and “BaseBoard Manufacturer.”
Go to your manufacturer’s support page
MSI: msi.com/support · Gigabyte: gigabyte.com/support · ASRock: asrock.com/support. Search for your exact board model and download the BIOS file.
Use the board’s built-in flash utility
Most desktop boards have a BIOS-level utility (MSI M-FLASH, Gigabyte Q-Flash, ASRock Instant Flash). Copy file to FAT32 USB → enter BIOS → use the utility.
Almost done — but there’s one more thing most guides don’t tell you:
▶ The Risks Nobody Tells You About →