Windows 8.1 Product Key 2021: Activation and Download

If you are looking for Windows 8.1 Product key, you have landed in the right place. Well, there is a small fact that you must know before we move on to the Activation keys. So, if you already have the older version of Microsoft Windows 8 or 7 for that matter, then you are probably not going to need the product keys. The software will be updated directly wince you have already bought the Windows License and now you just need an update.

Whereas, since this is your first time installing or buying any Windows License, then you will without any doubt need a Serial Number while activating the software to get hands-on all of its features. There are several ways to acquire these keys, either paid or free version that you will get once we go through to this article. So, keep reading and you will find what you have been looking for.

Where to look for Windows 8.1 Activation Keys?

So, the very first thing that you need to keep in mind is, every single key would be 25 characters long that includes numbers as well as letters. Now all of these keys are unique codes for only one-time use and cannot be used for any other user.

There are two ways you will find the Windows 8.1 Product Keys.

Microsoft Windows 8.1 Activation Key

  1. Buy a Genuine CD or DVD of Windows 8.1 from a store or online from an e-commerce store.
  2. You can also get the Windows 8.1 ISO file from the official website of Microsoft and get the activation keys for free from here.

Once you have purchased your CD or DVD, you need to install the software in your system first. After that look for the Windows 8.1 activation keys inside the CD and enter in the space prompted on your screen.

If you have bought the software online, you may receive the Windows 8.1 serial key via your email.

Not only this, if you have a really good internet connection just visit the official website of Microsoft from here. Download the Windows 8.1 software file and install it in your system. For those who do not wish to spend any money on the activation keys, we are here for that. Below are some of the Windows 8.1 keys that are 100% genuine and working for your 32-bit and 64-bit operating system.

Also, there might be some of the keys that might seem to be working since there are other users as well who have taken the activation keys from the list below. So, keep trying you will get the right one for yourself too.

Microsoft Windows 8.1 Product Key 2020

Here is the list of the product keys that will help you to activate Windows 8.1 in your systems. Assuming you have already installed it on your computer, all you need to do is take any product key from here and paste it in the space provided. This might just do the work for you without spending even a penny on buying the license.

Microsoft Windows 8.1 32-bit Serial Key



Windows 8.1 64-bit License Key



Windows 8.1 Pro Activation Key



Windows 8.1 Activation Key List



System Requirements for Windows 8.1 Operating System

Before you start downloading or activating Windows 8.1 in your system, do not forget to check the system requirements needed to run the Operating system. Here is the list of requirements:

  1. Processor: 1 gigahertz (GHz) or faster with support for PAE, NX, and SSE2
  2. RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)
  3. Hard disk space: 16 GB (32-bit) or 20 GB (64-bit)
  4. Graphics card: Microsoft DirectX 9 graphics device with WDDM driver

Make sure you tick out all these before buying the software or it would be a waste of money if your system isn’t compatible with Windows 8.1.

How to activate Windows 8.1 Product keys?

To activate Windows 8.1 product key, you just need to follow few simple steps. Firstly, download the software from the Internet or from the disc you have bought. After Installing the file follow the steps below.

  1. Click on “Start” and tap on the “Run” option
  2. In the dialog box enter this command “slui 2”
  3. The system will now open the Windows Activation Application.
  4. You can now enter the Windows 8.1 serial key in the space and click enter.
  5. Keep following the further process once your key has been accepted to activate your Windows 8.1 OS on your system.

You now have successfully activated your Windows 8.1 Operating system using the Activation keys. But if you wish to go for an alternative where you do not wish to use the Activation keys. There are certain options by which this can be made possible.

How to activate Windows 8.1 Operating System without using the Product Keys?

If you want to activate the software without using the serial keys then this section is for you. We have found out two different ways other users have been doing it and for most of them, it does work. But still why take a risk? Since we have already listed these many serial keys for free, so it is recommended to go for the one that involved using these keys. But let’s see how can we activate the software without the keys.

Before you begin these methods make sure to tick out these things to ensure no data is lost.

  1. Back up your files in an external hard disk or cloud storage
  2. Clear out any unwanted data to give enough space for the upgrade
  3. Make sure your laptop is fully charged, if not plug it in.
  4. You need to have a strong Internet Connection
  5. Disable your Antivirus before proceeding.

Method 1: Upgrading Windows 8 to Windows 8.1

If you are one of those people who already have Windows 8 installed in your system and have been using it for the long term. We have good news for you. You can easily upgrade your system to Windows 8.1 for free from your Windows Update Manager in your system.

Windows 8.1 Update

  1. Go to the “Start” screen and open store
  2. Search for the “Update Windows” option, select Windows 8.1 from the list and click on the download.
  3. The system will download the file in the background while you can continue to use your system.
  4. Once the download is successful, Restart your PC for the installation process.
  5. Now select “Use Express Settings” from the dialog box on the screen.
  6. Lastly, log in to your Microsoft Account, and install your apps.

A very simple method to upgrade to Windows 8.1, and very reliable as well since it is officially followed by Microsoft itself.

Method 2: Create your own Windows Activator

Some of you might not have heard about this before, so follow each step very carefully and things might work out well. Also, this is not a 100% working method, so don’t worry if it doesn’t work out for you. Just use the activation keys instead and move forward.

  1. Copy the text from this link and save it on a text file or notepad on your computer.
  2. Save the file name as “Activator.cmd”.
  3. Now right-click on the file and choose the “Run as Administrator” option
  4. After you click, a window will seem to flicker on the screen and disappear instantly.

All you need to do now is wait for certain minutes for the system to carry out the function in it. Simply restart your computer normally. Go to the setting to check out the Windows operating system version on your computer. If it shows Windows 8.1, then you are have successfully carried out the process.

If not, well there is still a better option to use Windows 8.1 on your system by using activation keys.


This is everything you needed to know about Windows 8.1 Product Key and its update. Once again we will like to say that all the Windows 8.1 Product keys might not work for you. We will be updating more very soon as we get hold on to it.

For more product keys related to Microsoft Office 2013 and 2016 visit the link here.

If you encounter any issue or error, do let us know we will help you fix it. Also, if there are other methods that you had tried and have worked out. Do let us know, we will update them for other users too.

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