Black Friday 2021 offer: Windows 10 Pro for € 11 and free upgrade to Windows 11

Many people are wishing they could upgrade to Windows 11, the new Microsoft operating system; there are two ways to do it, and one is of course to buy a Windows 11 license directly from CDKeySales and install it from scratch, while the other is to have one Windows 10 license and wait for the free update to arrive. Whatever your plan, here you will find the best offers during this Black friday to buy your Windows and Office licenses.

Thanks to this Black Friday promotion, you will not only have the opportunity to buy a Windows 10 license with full guarantee and at a minimum price compared to what it normally costs, but you will also be able to do it and then upgrade to Windows 11 for free. We remind you that these offers will only be active until November 30, so we recommend you hurry up and take advantage of them.

Windows 10 Pro for € 11 on Black Friday with the code HZ35

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How to activate the discount code and activate Windows

As we have mentioned above, we have the discount code HZ35 which reduces the price that you will see in the online store by 35% when you click on any of the links that we have placed for you. Activating it is very simple: first, register in the store and log in, and later add the products you want to your shopping cart in the same way as you would in any online store.

Windows 10 buy

After that, when you access the cart, you will see in the lower area a box in which you can write or paste the code, and after clicking on Apply you will see that the price is updated with the amount that we have set above.

Discount code Windows 10 Office

Once this is done you will see that the price has already been updated, and you will be able to complete the purchase as usual (we recommend paying with PayPal because it is faster and safer).


After making the payment, in less than 10 minutes you will receive your digital license at the email address with which you registered, so we will proceed to activate it. Assuming you have Windows 10, you must click on the Start button and then select Settings (the gear icon), then navigate to the “Update and security” menu and, after that, select Activation. In the middle area you will see a button called «Change the product key», click on it and a blue window will appear in which you can enter or paste the license code you have purchased.

Activate Windows 10

After that, click on next and the system will check the validity of the license. This process can take from a couple of seconds to a couple of minutes, depending on your Internet connection and the availability of Microsoft’s servers, but in any case, you will see that when your system ends it is already permanently activated.

Activate WindowsSponsored by CDKeySales.

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