How to Find Your Windows 10 Activation Key (4 Methods)
Need your Windows 10 product key for a reinstall or transfer? You can retrieve it…
Need your Windows 10 product key for a reinstall or transfer? You can retrieve it in seconds using Command Prompt, check your email receipt, or look for the COA sticker on your PC. The right method depends on how your copy of Windows 10 was licensed.
For a guide covering both Windows 10 and 11, see our complete product key finder guide. This page focuses specifically on Windows 10.
Key Takeaways
- Run
wmic path softwareLicensingService get OA3xOriginalProductKeyin Command Prompt to instantly retrieve the OEM key stored in your PC’s UEFI firmware. - If your Windows 10 uses a digital license (no key in firmware), your activation is linked to your hardware and Microsoft account — no 25-character key exists to find.
- Retail keys from purchases are in your email receipt or product packaging.
First: Do You Even Need a Key?
Check your license type before searching:
- Open Settings → Update & Security → Activation.
- If it says “digital license linked to your Microsoft account” — you don’t need a key. Reinstalling and signing in with the same Microsoft account reactivates Windows automatically.
- If it says “Windows is activated” without mentioning a digital license — you likely have a product key (OEM or retail).
Method 1: Command Prompt (OEM Keys)
This retrieves the product key embedded in your UEFI/BIOS firmware by the manufacturer.
- Click Start, type cmd, right-click Command Prompt, select Run as administrator.
- Run:
wmic path softwareLicensingService get OA3xOriginalProductKey - Your 25-character key appears on screen.
Returns blank? Your PC doesn’t have an OEM key in firmware. This happens with custom-built PCs or PCs activated with a retail key. Try the other methods.
Method 2: PowerShell (OEM Keys)
Same result, different tool:
- Right-click Start → Windows PowerShell (Admin).
- Run:
(Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKey
Method 3: Check Your Email
If you bought Windows 10 digitally, the key was emailed to you.
Search your inbox for: – “product key” or “license key” or “activation key” – Retailer name: “The Software City,” “Microsoft Store,” “Amazon,” “Newegg”
The Software City delivers keys via email within 15–45 minutes of purchase. If you bought from us, search for “thesoftwarecity” in your inbox.
Method 4: COA Sticker (Older PCs)
Windows 10 PCs rarely have stickers, but if your PC originally had Windows 7 or 8:
- Laptops: Check the bottom panel or inside the battery compartment.
- Desktops: Check the back or side of the tower.
- The sticker shows a 25-character key that likely still activates Windows 10 (same edition matching applies).
What If You Can’t Find Your Key?
| Situation | Solution |
|---|---|
| Digital license, same PC | No key needed — signs in and activates automatically |
| Digital license, new PC | Use Activation Troubleshooter (link Microsoft account first) |
| OEM PC, same hardware | Reinstall same edition — UEFI key activates automatically |
| Lost retail key | Purchase a replacement. Windows 10 Pro: $59.99, Home: $49.99 |
For activation instructions after finding your key, see our Windows 10 activation guide.
Frequently Asked Questions
Can I find my Windows 10 key if it was entered manually?
Not easily. Windows stores only the last 5 characters of manually-entered keys. Check your email receipt or original packaging. Third-party tools like ProduKey or Belarc Advisor can sometimes retrieve the full key from the registry, but results vary.
Will my Windows 10 key work on Windows 11?
Yes. Genuine Windows 10 retail and OEM keys activate the same edition of Windows 11 (Home for Home, Pro for Pro). You can use the same key for a Windows 11 clean install or upgrade.
Is the OEM key in firmware the same key I see on a sticker?
Not necessarily. The UEFI-embedded key (OA3 key) is what Windows uses for auto-activation. The sticker key (if present) is from an older era. Both may work, but the UEFI key takes precedence during installation.
Can I recover my key from a PC that won’t boot?
Yes. Boot from a Linux live USB (e.g., Ubuntu) and run: sudo cat /sys/firmware/acpi/tables/MSDM — this displays the OEM key from the UEFI firmware without needing Windows to boot.
Does “digital license” mean I never had a product key?
Not exactly. You may have entered a key at some point, but Microsoft converted it to a digital license tied to your hardware. Digital licenses from the free Windows 7/8 upgrade and Microsoft Store purchases never had a traditional key to begin with.
How do I find product keys for Office and other Microsoft software?
The wmic command only retrieves the Windows OEM key. For Office product keys, check your Microsoft account at account.microsoft.com/services or your email receipt from the purchase.
by Editorial Team
Updated on April 4, 2026
by Editorial Team
Updated on April 4, 2026
ON THIS PAGE
