BIOS Reset Windows 10: The Right Fix for Each Case

For bios reset Windows 10, choose one of three paths: load UEFI defaults if Windows still boots, clear CMOS if the PC won’t start, or use vendor password recovery if you’re locked out. Pick the wrong method and you can lose custom boot settings, recovery access, or minutes chasing a fix that never touches the real problem. This guide shows how to do each reset safely, plus how to tell BIOS from UEFI and what to try first when video still works.

What a BIOS reset changes

A BIOS reset changes motherboard firmware settings, not Windows files. On modern PCs, that firmware is usually UEFI, even if the setup screen still says BIOS. Resetting it can change boot order, Secure Boot state, fan or overclock settings, storage mode, and saved security options.

What stays the same after a reset

Your Windows 10 documents, installed apps, and user accounts stay on the drive. A firmware reset does not reinstall Windows and does not wipe the system disk. If Windows still loads after the reset, that is usually a sign the change was limited to firmware settings.

Check firmware version and mode first

Use msinfo32 in the Run box to open System Information. Look for BIOS Version/Date and BIOS Mode; that tells you both the installed firmware revision and whether the machine is using BIOS or UEFI mode. If you later need an update package, that information helps you match the right file.

1. Press Windows + R.
2. Type msinfo32 and press Enter.
3. Check BIOS Version/Date.
4. Check BIOS Mode.

Likely causes

Most BIOS reset requests come down to a wrong firmware setting, a bad boot order, or a CMOS problem. Less commonly, the issue is a forgotten password or a failed firmware update. If the screen stays black, treat the problem as hardware access first, not a Windows issue.

BIOS reset decision matrix

Use the symptom, not guesswork, to choose the right fix. The safest path depends on whether Windows still boots, whether the setup screen opens, and whether the machine is locked out. One size does not fit all here.

Say your desktop still reaches Windows 10, but a new SSD no longer appears in the boot list. That is a boot-order problem, so loading firmware defaults and then reselecting the SSD is the correct first move.

Suppose a small office PC shows video only after repeated restarts, then forgets the date every time it powers off. That points to firmware settings and possibly a weak motherboard battery, not a Windows problem. A reset may help, but the battery may also need replacement.

How do you reset BIOS from Windows 10?

If Windows 10 still loads, use Advanced Startup to reach UEFI Firmware Settings. The shortest path is Settings > Update & Security > Recovery > Restart now, or hold Shift while clicking Restart. From the blue menu, go to Troubleshoot > Advanced options > UEFI Firmware Settings and restart into setup. That path is the cleanest option when video and keyboard both work.

1. Open Settings.
2. Go to Update & Security > Recovery.
3. Under Advanced startup, select Restart now. (reported by howtogeek.com)
4. Or hold Shift and click Restart from the desktop. (reported by howtogeek.com)
5. At the Choose an Option screen, go to Troubleshoot > Advanced options > UEFI Firmware Settings and click Restart. (reported by howtogeek.com)
6. Select the firmware default option your board offers, such as Load Optimized Defaults, Load UEFI Defaults, or Load Fail-Safe Defaults.
7. Save and exit.

On some boards, ASUS labels the reset choice Load Optimized Defaults, ASRock boards may use Load UEFI Defaults, and older BIOS screens may offer Load Fail-Safe Defaults. Those names do not mean different goals; they are vendor-specific labels for returning settings to a known baseline.

How do you reset BIOS without a display?

If the screen stays black, you cannot rely on Windows menus, so the first move is the manufacturer startup key. Common keys include F2 and Delete, and many PCs also use F10 or Esc. Use a key on your keyboard while powering on the computer. The exact key varies by manufacturer. (reported by howtogeek.com)

1. Shut the PC down fully.
2. Power it on and tap the startup key during the logo screen. (reported by howtogeek.com)
3. Try F2 or Delete first; the exact key depends on the maker. (reported by howtogeek.com)
4. If setup never appears, use the manufacturer’s support or service path for that model.
5. If you later get into setup, check the firmware settings again and save the correct boot order.

Different computers use different startup keys, so you may need to try the correct one for your model before setup appears.

How do you clear CMOS safely?

Clear CMOS only after you power off the PC. This is the physical reset path for settings stored on the motherboard, and it is the right option when firmware menus cannot open at all. The exact steps vary by board, so the manual or support page should guide the location of the reset points.

1. Power off the PC.
2. Unplug the power cord and, on a laptop, disconnect external power.
3. Follow the board or system manual for the exact CMOS reset method.
4. Wait long enough for the stored settings to clear.
5. Restore the system to normal power, then boot the PC and enter firmware setup to confirm the reset took effect.

If the reset fails, repeat the process and verify contact. A loose battery, the wrong pins, or an unchanged jumper position is a common reason the machine comes back with the same settings still intact.

How do you recover a BIOS password?

BIOS password removal usually depends on the motherboard or laptop maker. There is generally no safe universal password that works on every machine, and random forum codes are usually a bad idea. The approved route is the vendor support page, the service process, or the organization that manages the device.

1. Check the exact model on the manufacturer support page.
2. Look for a documented BIOS password reset or service procedure.
3. Follow the maker’s proof-of-ownership or repair steps if required.
4. If the device belongs to a company or school, contact the IT team instead of trying public tools.

Do not confuse this with clearing CMOS. A CMOS reset may remove settings, but many modern laptops keep password protection in separate storage or require vendor intervention anyway.

How do you update BIOS on Windows 10 safely?

Update BIOS only when the exact model needs it and the support page provides a matching package. This is not a reset method. A BIOS update package usually arrives as a ZIP archive with the firmware file and a README, and the instructions may call for a USB flash path or an in-BIOS flash tool.

1. Open the manufacturer support page for your exact model.
2. Confirm the BIOS Version/Date in System Information first.
3. Download only the matching BIOS ZIP package and README.
4. Read the flashing steps before starting.
5. Use the supported method only: USB flashing or the in-BIOS utility.
6. Do not interrupt power during the update.

If the machine will not boot cleanly, stop and use vendor support. A failed flash can leave the board unreachable, which is a repair issue rather than a normal settings reset.

What happens after I reset BIOS settings?

After a reset, expect firmware defaults to return, not Windows defaults. Boot order may change, the clock may reset, Secure Boot and overclocking settings may revert, and storage mode may need a fresh check. If a drive no longer boots, re-enter setup and confirm the intended disk comes first.

A common first-timer mistake is assuming the reset broke Windows because the system starts differently. In many cases, the machine is fine; it only needs the correct boot device and the right storage setting restored.

If you need a quick recurrence check, save the firmware screen’s current boot order and note the BIOS version before you leave setup. That makes the next change easier to verify.

Frequently asked questions

How do I reset BIOS on Windows 10?

Use Settings > Update & Security > Recovery > Restart now, then go to Troubleshoot > Advanced options > UEFI Firmware Settings. Once setup opens, choose the firmware default option shown by your board, such as Load Optimized Defaults, Load UEFI Defaults, or Load Fail-Safe Defaults.

Does resetting Windows 10 reset the BIOS too?

No. A Windows reset changes the operating system and can remove apps or files depending on the option chosen, but it does not automatically change firmware settings. BIOS or UEFI defaults are separate and must be reset from setup or by clearing CMOS.

How do I enter BIOS on a Windows 10 PC?

Either press the manufacturer startup key during power-on, or use Shift + Restart to reach the Advanced Boot Menu. From there, choose Troubleshoot > Advanced options > UEFI Firmware Settings, then restart into setup. The exact key varies by maker; F2 and Delete are common.

How do I clear CMOS if I can’t get into BIOS?

Power off the system, unplug it, and follow the motherboard or system manual for the exact CMOS reset method. Afterward, restore power and boot again.

How do I remove or reset a BIOS password on Windows 10?

Use the manufacturer’s official recovery or service process. Many systems require proof of ownership or help from the maker or IT department, and there is no universal reset code that is safe to trust. CMOS clearing may not remove the password on modern hardware.