How to Update BIOS | Safer PC Firmware Fix

BIOS, or UEFI on newer PCs, is the firmware that starts your hardware before Windows, Linux, or another system loads. Updating it can fix boot bugs, add CPU or memory compatibility, patch security flaws, or solve device errors that normal driver updates can’t touch.

It’s not a routine “click everything” update. A BIOS file must match your exact laptop, desktop, or motherboard model. The wrong file, a flat battery, or a forced shutdown can leave the machine unable to boot. Done carefully, the job is usually plain and boring, which is exactly what you want.

When A BIOS Update Makes Sense

You don’t have to install every BIOS release the minute it appears. Start with the reason. If your PC is running well, read the maker’s release notes before changing firmware.

A BIOS update is worth doing when it fixes a problem you actually have or adds support for hardware you plan to install. It can also be smart when the maker lists a security fix for your model.

• Your laptop has charging, fan, sleep, or boot issues listed in the update notes.
• You’re adding a newer CPU, SSD, RAM kit, or dock that needs newer firmware.
• Windows asks for Secure Boot, TPM, or firmware changes for a system feature.
• The PC maker marks the release as a security fix.
• A technician or maker notice names your exact model and BIOS version.

Skip the update if you can’t identify the exact model, can’t keep the PC plugged in, or are mid-way through work you can’t lose. Save your files first, close apps, and give the machine a quiet window with no forced shutdowns.

Check Your Current BIOS Version First

Before downloading anything, write down your current BIOS version and system model. In Windows, press Windows + R, type msinfo32, and press Enter. In System Information, read the lines named System Model and BIOS Version/Date.

On many PCs, the model is also printed on the bottom cover, service tag label, retail box, or motherboard PCB. Match the full name, not just the family. A ThinkPad T14 Gen 3 and T14 Gen 4 may look alike, but they don’t share every firmware file.

Then open the maker’s page for your exact machine. Dell’s instructions explain how to compare your installed version with the release on the product page through the Dell BIOS update process. HP says many consumer desktops can use HP tools or Windows Update, depending on the PC and Windows mode, through HP BIOS update steps.

Updating BIOS On Your PC With Less Risk

The safest method is usually the one your PC maker recommends for your exact model. Laptops from Dell, HP, Lenovo, ASUS, Acer, and others may offer a Windows installer, a maker app, a USB method, or a firmware menu updater. Motherboards often use a USB file inside the UEFI screen.

For Windows users, Microsoft describes firmware as UEFI, often still called BIOS, and notes that firmware settings control features such as Secure Boot on modern PCs. That matters if the update resets boot settings or changes a Secure Boot option after restart. See Microsoft’s notes on Windows 11 and Secure Boot before changing those settings.

Use this clean order before running the updater:

1. Back up files you can’t lose.
2. Plug in the charger or use a UPS for a desktop.
3. Turn off sleep timers until the update is done.
4. Close games, browsers, editors, and background installers.
5. Download only from the PC or motherboard maker.
6. Read the release notes and any warning on the download page.
7. Run the update once, then let the PC restart on its own.

During the update, the screen may go black, fans may spin, and the PC may restart more than once. Don’t press the power button. Don’t unplug the charger. Don’t remove the USB drive unless the maker’s screen tells you to do so.

Step	What To Do	Why It Matters
Confirm Model	Match the full product name, tag, or motherboard revision.	BIOS files are model-specific.
Check Version	Use System Information or the UEFI screen.	You may already have the needed release.
Read Notes	Scan fixes, warnings, and install order.	Some makers require staged updates.
Back Up	Save documents, photos, and project files.	Firmware work should never risk your data plan.
Power Up	Use AC power, a charged battery, or a UPS.	Power loss is one of the worst failure points.
Use Official File	Download from the maker’s page for your exact device.	Random mirrors can host wrong or altered files.
Wait It Out	Let every restart finish without touching power.	Firmware flashing needs uninterrupted writes.
Recheck Settings	Confirm boot order, Secure Boot, fan mode, and XMP/EXPO.	Some updates reset UEFI options.

What To Do After The BIOS Update Finishes

Once the PC returns to Windows, open System Information again and confirm the BIOS version changed. If the maker tool shows a success message, save a screenshot or note the version in case you need it for warranty or repair chat later.

Next, restart once more and enter the firmware screen if you had custom settings before. Gamers and builders should check XMP, EXPO, fan curves, virtualization, RAID mode, resize BAR, and boot order. Office laptops may only need a plain restart and a normal sign-in.

BitLocker can ask for a recovery code after firmware changes on some Windows PCs. Store that code before you begin if device encryption is on. Search Windows for Manage BitLocker, or check your Microsoft account recovery keys if your device is tied to one.

If The PC Boots Normally

Run the apps or hardware that led you to update. Test sleep, charging, Wi-Fi, dock output, USB ports, or the new hardware install. Don’t change five other settings at once. Clean testing helps you know whether the firmware change fixed the problem.

If The PC Acts Strange

Small changes after a BIOS update can happen because defaults were restored. A boot drive may move down the order. Secure Boot may turn on or off. Memory may drop to base speed. Check the firmware menu before assuming the update failed.

Symptom	Likely Cause	Next Move
Asks For BitLocker Key	Firmware change triggered device encryption check.	Enter the saved recovery code.
Wrong Boot Device	Boot order reset.	Move your system drive back to the top.
RAM Runs Slower	XMP or EXPO turned off.	Enable the prior memory profile.
Fans Sound Different	Thermal profile reset.	Pick the prior fan or power mode.
No Display After Update	Firmware reset, cable issue, or failed flash.	Try another display port, then use maker recovery steps.

BIOS Update Mistakes That Cause Trouble

The biggest mistake is rushing the model match. Many laptops share a shell design across several versions. Many motherboards have Wi-Fi and non-Wi-Fi editions, DDR4 and DDR5 editions, or revision numbers printed near the PCIe slots.

The second mistake is treating BIOS like a normal driver. A failed audio driver can be removed. A bad firmware flash can stop boot. That doesn’t mean you should fear every update; it means the prep work matters.

• Don’t use a BIOS file from a forum, file mirror, or video description.
• Don’t update during storms, low battery, or unstable power.
• Don’t force shutdown because the screen stays black for a few minutes.
• Don’t skip release notes when you are many versions behind.
• Don’t change Secure Boot, TPM, RAID, or storage mode unless you know your prior setting.

Final Checks Before You Press Update

You’re ready when the model, current version, new version, power source, and recovery plan all line up. That short checklist prevents most bad BIOS update outcomes.

If you’re helping a friend or working on a work laptop, stop before changing firmware you don’t own or manage. Company devices may have locked settings, device encryption, or admin rules that require a managed update channel.

For a home PC, the clean rule is simple: use the maker’s file, follow the maker’s steps, and leave the machine alone until it fully restarts. That’s the plain, safe way to update BIOS without turning a fix into a repair bill.