Where Is The Serial Number Of An Asus Laptop? | Easy Map

Guide / By

An ASUS laptop’s serial sits on the bottom label, in BIOS, on the box, or in Windows via PowerShell, usually marked “S/N” or “Serial Number”.

If you need warranty checks, driver downloads, or proof of ownership, you’ll need the exact ID tied to your machine. On ASUS notebooks, that ID appears in a few predictable places—on the chassis label, inside firmware screens, on the retail packaging, and inside Windows with a quick command. This guide shows each route step-by-step, with copy-ready commands and practical checks, so you can grab the code fast without tearing your setup apart.

Fast Places To Check On The Device

Start with the simple spots you can reach without tools. The label usually spells out “S/N,” “Serial,” or a long alphanumeric string. On many models it’s near the vent grid, hinge edge, or centered on the bottom case. On older designs with removable batteries, the sticker may hide inside the battery bay. Newer units sometimes print it in tiny type right beside a QR code. If you still have the factory film or a shipping label stuck to the lid, peek there too—ASUS sometimes repeats the code on temporary wraps.

Bottom Case Label (Fastest)

Flip the laptop onto a soft surface to avoid scuffs. Scan the under-panel for a white or silver sticker. You’re looking for a 10–15 character code, often a mix of letters and numbers. If you see a QR code, scan it with your phone; many stickers embed the same number in that code. If screws or rubber feet block the view, don’t pry them off—serials never require disassembly on modern notebooks.

Keyboard Deck Or Hinge Area

Some thin-and-light models shift branding to the hinge bar or palm rest. Tilt the screen back and look along the hinge and under the lip. You may see small print with model name and the serial code. If the print is faint, shine a flashlight at a shallow angle to catch the contrast.

Find The Asus Laptop Serial Number In Minutes

When the chassis sticker is smudged or missing, the firmware and the OS still store the same identifier. Use these quick paths to read it from software screens without opening the case.

Method 1: BIOS/UEFI Screen

  1. Shut down the laptop.
  2. Press the power button and tap F2 as it starts.
  3. On the main page, look for “Serial Number,” “S/N,” or similar under System Information.

This route works even if Windows won’t boot. It reads the value straight from the firmware, which mirrors the number printed on the chassis and box.

Method 2: Windows Command (Copy And Paste)

Open one of the two tools below. Both read the same BIOS field and print a single line you can copy into email, forms, or tickets.

PowerShell (Preferred)

Get-CimInstance Win32_BIOS | Select-Object -ExpandProperty SerialNumber

This cmdlet queries the Win32_BIOS class and extracts only the serial so you aren’t wading through extra fields. It runs on current Windows builds without extra packages.

Command Prompt

wmic bios get serialnumber

On many systems this still prints the same one-line result. If your build no longer includes WMIC, stick with the PowerShell line above.

Save It To A File (Optional)

# PowerShell
(Get-CimInstance Win32_BIOS).SerialNumber | Out-File "$env:USERPROFILE\Desktop\serial.txt" -Encoding ascii

That snippet drops a plain text file on the desktop with only the code—handy when you’re collecting info for a claim or repair.

Method 3: System Tools When Windows Won’t Load

If the OS is stuck, the firmware path still works. Boot to BIOS with F2 and read the number from the main page. If you’re using a bootable utility drive, open PowerShell on that environment and run the same CIM command against the local machine.

Method 4: MyASUS App

If you previously registered the device in MyASUS, open the app and check the product list. Registered items show their IDs, which you can copy into any form. If you haven’t registered yet, you can add the device quickly once you have the code from any method above.

Packaging And Paperwork Spots

Don’t overlook the shipping box or the inner sleeve. Retail packaging repeats the serial on the outer label along with the model, color, and specs. Many boxes include a second peel-off sticker—tuck that into a safe place. If you kept the warranty card or invoice, scan those too; the number often appears beside the model name. This is handy when the laptop lives in a dock and you’d rather not unplug anything.

What The Code Looks Like

You’ll typically see uppercase letters and numbers with no spaces. On labels, the line starts with “S/N:”, “SN:”, or just the raw string. The length varies by family. If you’re unsure whether you’re reading the right thing, match it across two locations—sticker plus BIOS, or sticker plus Windows—to confirm before you submit it anywhere.

Why The Serial Matters

This ID ties your exact unit to manufacture batch, region, and warranty window. It also helps match the right drivers and parts. If you have multiple ASUS notebooks at home or work, the number distinguishes machines that share the same model name. Keep a copy of the code in your password manager or asset sheet, and attach a photo of the bottom sticker so you have a visual reference later.

Accuracy Checks Before You Share It

  • Cross-verify: Read it in two spots (sticker + BIOS, or PowerShell + packaging).
  • Watch for mistyped chars: Zero vs “O,” one vs “I,” five vs “S.”
  • Check region letters: Some lines include market codes; copy them exactly.
  • Avoid spaces: Most forms reject spaces or hyphens; paste the raw string.

When The Sticker Is Faded Or Missing

Use the firmware path first, since it reads the embedded value. If you need a clear photo for records, angle a phone light across the bottom panel to bring out low-contrast text, then switch to a high-contrast filter. If adhesive peeled off, the QR code cavity may still show glue outlines—snap that area and zoom in; faint print sometimes remains. As a last resort, pull the number from PowerShell and attach the capture to your receipt so you can match the machine later.

Serial Vs. Model Name

Model names read like “UX3404,” “GA402,” or “X515.” Those mark families and trims. The serial is the one-machine ID. Many forms ask for both. If a page asks for “Model” and another field asks for “Serial,” don’t swap them—entry checks may reject the request or return the wrong parts list.

Table: Best Place To Look, Based On Your Situation

Spot What You’ll See Best When
Bottom Case Label Sticker with “S/N” and QR code Device is nearby and you can flip it
BIOS/UEFI Serial listed on main page Windows won’t boot or drive is blank
PowerShell One-line output in console You want a copy-paste string
Retail Box Outer label with model and code Laptop is docked or packed away
MyASUS Registered device list with IDs You’ve added the device before

Two Official References Worth Saving

Bookmark an ASUS help page that shows where the code appears on packaging and inside BIOS. Here’s a direct link with clear screenshots: ASUS guide on serial numbers. For the Windows command route, Microsoft’s module docs cover the CIM cmdlet used in the PowerShell line above: Get-CimInstance docs. Both links are handy when you’re helping someone else grab the code on a call.

Troubleshooting Odd Results

Blank output in PowerShell? Run the shell as an admin, then try again. If the console still prints nothing, open BIOS and read the value there. Some virtualized or reflashed systems don’t expose the field in Windows tools, but the firmware screen usually shows it.

“Not found” on a web form? Double-check case and length. Clear any spaces you introduced while typing. If the page filters by region or model family, match those drop-downs first, then paste the code.

Sticker rubbed off? Take a clean photo under bright side-lighting. If that fails, rely on the BIOS screen and store a screenshot in your records.

Keep A Clean Record

Once you’ve grabbed the code, save three things in one place: a plain text copy of the string, a screenshot from PowerShell or BIOS, and a photo of the bottom label. If the laptop leaves your desk for repair or resale, that trio makes every form faster. If you manage multiple notebooks, drop each record into a folder named with the model plus the code—searching later becomes effortless.

Quick Recap And Next Steps

  • The fastest read is the bottom label.
  • Firmware (F2 at boot) shows the same code without needing Windows.
  • PowerShell prints a clean, copy-ready line you can paste anywhere.
  • Packaging, cards, and invoices repeat the same string.
  • Save a text copy, a screenshot, and a label photo for painless forms later.

Copy-Ready Commands (All In One Place)

# PowerShell (current Windows)
Get-CimInstance Win32_BIOS | Select-Object -ExpandProperty SerialNumber

# Command Prompt (many builds)
wmic bios get serialnumber

# Save to Desktop (PowerShell)
(Get-CimInstance Win32_BIOS).SerialNumber | Out-File "$env:USERPROFILE\Desktop\serial.txt" -Encoding ascii

That’s everything you need to find, confirm, and save the exact identifier tied to your ASUS notebook. Keep it handy—you’ll use it more than once.