Windows 8.1 Product Key and Activation Guide

In this post, you will learn how to activate Windows 8.1, and it includes 100% working Windows 8.1 product keys.

Microsoft released Windows 8.1 as an upgrade version of Windows 8. Up until July 2016, Windows 7 & 8 users could upgrade to Windows 10, but that’s no longer possible.

To upgrade to Windows 10, you need to purchase a genuine Windows 10 license. But if your PC has Windows 8, you can upgrade to Windows 8.1 without incurring the additional license fee.

However, if you have an older version of Windows, you will have to provide a valid Windows 8.1 activation key to access all the features of the Operating System.

Read on to find working product keys for Windows 8.1.

Mục Lục

What Is Windows 8.1 Product Key?

Windows 8.1 product key is a unique 25-digit code you must provide to activate your copy of Windows 8.1.

The code looks like this:

XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

How to Find Your Windows 8.1 Product Key

You can find your Windows 8.1 product key in the following places:

In case of purchasing a computer with Windows 8.1 pre-installed, you should find your Windows 8.1 activation key somewhere on a sticker on the computer.
Getting a computer from an approved dealer, and you can’t see the sticker, ask the dealer to provide the Windows 8.1 product key.
If buying a copy of Windows 8 or 8.1 on a CD or DVD, you should find the serial key on a card inside the box.
When purchasing your copy of Windows 8 or 8.1 online, you will receive an email (via the email address you provided at the time of purchase). It will contain your win 8 product key and other details such as your billing address, order number, and link to the Windows 8 or 8.1 installer
If you have already installed Windows 8 or 8.1 with a serial key, but can’t find it, you can retrieve it using various software programs available online, such as PassFab Product Key Recovery.

Free, 100% Working Windows 8.1 Product Keys

All Windows 8.1 serial keys on this post are genuine and free. We’ve included serial keys for both Ultimate and Professional versions of Windows 8.1.

You only need to use one Windows 8.1 serial key depending on the version your computer is running.

Windows 8.1 Ultimate Serial Keys

DNJXJ-7XBW8-2378T-X22TX-BKG7J

KKPMN-469HY-H6V43-T8VX2-8W8XV

T3NJK-3P683-2T7BJ-2X27F-8B2KV

TT4HM-HN7YT-62K67-RGRQJ-JFFXW

MNDGV-M6PKV-DV4DR-CYY8X-2YRXH

JMNMF-RHW7P-DMY6X-RF3DR-X2BQT

DFHJDU-QJH7K-FJDJ-FQJ24-DFJD

3FCND-JTWFM-24VQ8-QXTMB-TXT67

GX9N8-4H2FH-D987T-BQ9GK-XKT67

FJKDI-3DRJD-7D38SO-DFNDJ-FJKDI

DHJSU-V9KF6-FHJDU-KWBTC-DFJDU

Windows 8.1 Pro Serial Keys

HMCNV-VVBFX-7HMBH-CTY9B-B4FXY

MBFBV-W3DP2-2MVKN-PJCQD-KKTF7

6RH4V-HNTWC-JQKG8-RFR3R-36498

4Y8N3-H7MMW-C76VJ-YD3XV-MBDKV

28VNV-HF42G-K2WM9-JXRJQ-2WBQW

XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB

34NH-RXG76-64THK-C7CKG-D3VPT

TT4HM-HN7YT-62K67-RGRQJ-JFFXW

FHQNR-XYXYC-8PMHT-TV4PH-DRQ3H

ND8P2-BD2PB-DD8HM-2926R-CRYQH

MHF9N-XY6XB-WVXMC-BTDCT-MKKG7

MNDGV-M6PKV-DV4DR-CYY8X-2YRXH

N4WY8-DVW92-GM8WF-CG872-HH3G7

NTTX3-RV7VB-T7X7F-WQYYY-9Y92F

KQWNF-XPMXP-HDK3M-GBV69-Y7RDH

MMRNH-BMB4F-87JR9-D72RY-MY2KV

GCRJD-8NW9H-F2CDX-CCM8D-9D6T9

Every ultimate and pro product key listed here is genuine and should work. However, if one of the Windows 8.1 activation keys provided doesn’t work, feel free to try another activation key.

Haven’t found a working Windows 8.1 key? Come back tomorrow for updated product keys.

How to Activate Windows 8.1

Now that you have access to a wide range of Windows 8.1 product activation keys, the next step is activating your copy.

Do the following:

Close all running programs
Click on Start and type Run in the search bar
Open Run and enter slui2 and hit enter
A new window will open and ask you to provide a genuine Windows product key 8.1
Grab a Win 8.1 product key on this post and use it
Your PC will now activate your copy of Windows 8.1 automatically through your internet connection.

How to Activate Windows 8.1 Without Product Key

Although a product key Windows is necessary, you can still activate Windows 8.1 without one.

However, keep in mind that it doesn’t work all the time. Therefore, you may still have to use an activation key on this page.

Upgrade from Windows 8

If your PC has Windows 8, you can simply upgrade to Windows 8.1 running.

Before you start:

Backup important files and documents
Make sure your PC has at least 3GB of free space
If you are upgrading on a laptop, make sure it’s plugged into a power outlet.

Follow these steps:

Go to Windows Store on Windows 8
Find the update option
Choose that option and click on Download
The update files will download automatically and install in the background
After a successful update, restart your PC
When update window comes up, select Use Express Settings
Login into your MS account and reinstall your apps

These steps should enable you to upgrade from Windows 8 to 8.1 without using an activation key.

Create Your Own Windows Activator

This method doesn’t you to provide a product key for Windows 8 or 8.1. It involves creating a . bat file and running it on your PC to activate Windows.

Here are the steps you need to follow:

Click here to find a code
Click File and save it as activatior.cmd

If you are unable to save the text file as .cmd, follow these steps to enable this setting in your Windows file browser:

Find the file explorer menu and click View
Select File and Folder Options
Select View
Click Advanced Settings to see an option that enables you to check and uncheck settings
Locate and uncheck Hide extensions for known file types to display extensions for all types of files.

1. Now save the text file as .cmd
2. Right-click on the .cmd file and select Run as administrator
3. After running the file, a new window will appear and disappear on your desktop

Wait a couple of seconds and reboot your PC. Then check to see if the activation was successful.

FAQ

Can these Windows 8.1 activation keys work for 32-bit and 64-bit systems?

Yes, they work for both 32-bit and 64-bit systems. It doesn’t matter the bit-version you are using as long as you have a working Windows 8.1 Ultimate or pro product key.

How Do I Activate Windows 8.1 Offline?

Press Windows button + R to open Run
Type SLUI4 in the Run window and hit Enter
This will open a Window with your installation ID and contact information
Choose your country/region
Call the number provided on the screen
Enter the installation ID over the phone
When prompted, choose option “1” to confirm you have only installed one copy of Windows 8.1 with this license
You will receive a confirmation ID and click activate to activate your copy of Windows 8.1.

Can I Use Windows 8.1 Without Activation?

Yes, you can use Windows 8.1 without activation, but without a genuine activation key, you won’t use it for long.

You will get prompts every couple of hours to provide a serial key and you will be able to use only about 30% of Windows 8.1’s capabilities.

Can You Download Windows 8.1 for Free?

Yes, you can download and install Windows 8.1 for free. Basically, there are two ways to download Windows 8.1. If you have Windows 8, you can download Windows 8.1 from the Windows 8 store for free.

Another way is to download an ISO version of Windows 8.1 and install the operating system on a different partition to dual boot between Windows 8.1 and Windows 8.

However, you will be required to provide a Windows 8.1 activation key during installation. Feel free to use a free Windows 8.1 product key on this page.