Asus stuck in BIOS Utility EZ Mode

Your Asus boots, the screen goes black for a second, then it lands you in the orange-and-grey BIOS Utility EZ Mode screen. Every. Single. Time. Here are the eight things to try, in the order I would try them on my own machine.

The fast version

If you only have five minutes:

Press F7 to switch from EZ Mode to Advanced Mode.
Go to the Boot tab.
Check that Windows Boot Manager appears in the boot priority list. If it does not, your SSD is either disconnected, dying, or has lost its EFI partition.
If it is there but not first, drag it to position #1.
Press F10 to save and exit.

That fixes maybe 60% of cases. If it does not fix yours, work through the rest below.

Fix 1 — Load Optimized Defaults (60-second test)

This is worth trying first because it costs nothing. From EZ Mode, press F5 (or in Advanced Mode, F9). Confirm "Load Optimized Defaults". Then F10 to save and reboot.

If someone toggled an obscure setting (or a Windows update did), this rolls everything back to a known state. On three of the last ten Asus boards I have helped fix, this alone was the fix.

Fix 2 — Check the boot order

Press F7 to switch to Advanced Mode → Boot tab → Boot Option Priorities.

What you want to see at position #1: Windows Boot Manager (your SSD model name).

What you might see instead:

Nothing. No bootable devices listed at all → your drive is the problem (skip to Fix 4).
UEFI: USB device at #1 → unplug any USB sticks and press F10. Asus boards prefer USB boot when one is plugged in.
The drive listed but not "Windows Boot Manager" → your EFI partition is missing or corrupted. Skip to Fix 7 (Startup Repair).

Fix 3 — Disable Fast Boot

Advanced Mode → Boot → Fast Boot → set to Disabled. F10 to save.

Asus's Fast Boot skips USB and other device initialisation to shave seconds off boot time. When it skips the wrong thing — particularly an NVMe SSD that needs an extra moment to spin up — you land in EZ Mode. Disabling it adds two seconds to boot time and fixes the problem on a surprising number of machines.

Fix 4 — Check that the SSD is detected

Back to EZ Mode (F7 toggles between modes). Look at the Storage Information panel on the right side of the screen.

If your SSD is listed there with its model name and capacity → drive is alive, problem is software. Continue to Fix 5.

If the SSD is missing or shows as "Not Installed":

Power off, unplug, hold power for 30 seconds (drains residual charge).
Open the back, reseat the M.2 SSD (or SATA cable for a 2.5" drive).
If still missing on next boot, the drive has likely failed. NVMe SSDs from 2018-2020 (particularly cheap brand-name knockoffs) have a high failure rate around the 4-5 year mark.

Fix 5 — SATA Mode (AHCI vs RAID)

Advanced Mode → Advanced → SATA Configuration → SATA Mode Selection.

Windows is installed expecting one mode. If something flipped this (often a Windows update on Intel platforms), Windows will not boot — the BIOS sees the drive but Windows refuses to recognise it.

The default for most Asus consumer boards is AHCI. If yours is set to Intel RST Premium or RAID, change it to AHCI, save, reboot. (If the change breaks Windows boot, just change it back — no harm done.)

Fix 6 — Disable Secure Boot temporarily

Advanced Mode → Boot → Secure Boot → OS Type → Other OS. F10 to save.

This relaxes Secure Boot enforcement. If your Windows installation lost its Secure Boot signing (common after a Windows feature update on older boards), this gets you booting again. Once Windows is up, you can re-enable it.

Fix 7 — Run Startup Repair from Windows install media

If the BIOS sees the drive but Windows still will not boot, the bootloader is corrupted. You need a Windows installation USB:

On another working PC, download the Windows Media Creation Tool from microsoft.com.
Create a bootable USB.
Plug it into the broken Asus, boot from it (F8 at the Asus logo, pick the USB).
At the Windows installer, click Repair your computer → Troubleshoot → Startup Repair.
If that fails, go back and pick Command Prompt, then run: bootrec /rebuildbcd, then bootrec /fixmbr, then bootrec /fixboot.

Fix 8 — CMOS reset (last resort before assuming hardware death)

If nothing above works, a hard CMOS reset clears every BIOS setting back to true factory defaults — even more thorough than F5/F9.

On a desktop: power off, unplug, locate the small silver coin battery (CR2032) on the motherboard, remove it for 60 seconds, replace.

On an Asus laptop: same idea but the battery is under the bottom panel — search YouTube for "[your laptop model] CMOS battery" before you start, because the location varies by model and some require partial disassembly.

If none of the above worked

You are likely looking at one of two things:

Failed SSD. Test by plugging the drive into another machine via a USB enclosure (£8 on Amazon) and seeing if it shows up. If not, replace it.
Motherboard fault. Specifically a failed UEFI flash or a damaged firmware chip. On a desktop, BIOS Flashback (the dedicated USB port on the rear I/O) can sometimes recover this. On a laptop, motherboard replacement is usually £150-300 and rarely worth it on a machine more than four years old.

Why this happens to Asus boards more than others

Asus's "EZ Mode" is technically a feature — a friendlier graphical front-end to the BIOS, designed for users who would otherwise be intimidated by Advanced Mode. The problem is that Asus made it the default fallback when boot fails, instead of the more honest "No boot device found" message that other vendors show.

So an MSI or Gigabyte board with the same problem displays a clear error message; the Asus board drops you into EZ Mode and leaves you to figure out that this means "I cannot boot". The result is hundreds of thousands of confused Asus owners every year.

Frequently asked

Why does my Asus laptop keep going into BIOS Utility EZ Mode every time I turn it on? +

In almost every case, the BIOS cannot find a valid drive to boot Windows from. It falls back into EZ Mode because that is its "I do not know what to do" screen. The cause is usually one of: SATA mode set wrong (RAID instead of AHCI, or vice versa), Secure Boot blocking your bootloader, the Windows Boot Manager dropped from the boot order, or the SSD has died.

I press F10 to save and exit but it just goes back into EZ Mode. What is happening? +

F10 saves your changes and reboots — but the reboot lands back in EZ Mode because nothing about the underlying problem has changed. F10 is not a fix; it is a save command. You need to actually fix what the BIOS is complaining about (usually the boot device list) before exiting.

Will resetting the BIOS to default fix this? +

Sometimes — particularly if someone changed a setting and forgot. Press F5 or F9 (depending on board) to load Optimized Defaults, then F10 to save. Try it once. If it does not fix it, the problem is your drive or boot configuration, not the BIOS settings.

Could a dying CMOS battery cause this? +

Yes. The CMOS battery (a CR2032 coin cell on the motherboard) keeps your BIOS settings between power cycles. When it dies, the BIOS resets to factory defaults every boot — which often means the boot order is wrong and you land in EZ Mode. Most laptops 5+ years old have a dying CMOS battery. Replacement is £2 and 20 minutes of work, but on laptops it usually requires removing the bottom panel.

My SSD shows up in EZ Mode under "Storage Information" but Windows still will not boot. Why? +

The BIOS can see the drive (good — drive hardware is alive) but does not recognise a bootable Windows installation on it. Common causes: the EFI System Partition got corrupted, the bootloader is missing, or the drive was cloned from another machine without re-running bcdboot. Boot from Windows installation media and run "Startup Repair" — it usually fixes it.