Windows 10 Professional CD-KEY (32/64 Bit) works only for Windows, not for Mac!
Windows 10 Home, Windows 7 Home Basic/Premium and Windows 8.1 CoreCountrySpecific/CoreSingleLanguage/Chinese (incl. WMC) CANNOT be directly upgraded to Windows 10 Professional by changing product key in Windows system. If You have these editions on you computer, you need to make a clean installation after purchasing Windows 10 Professional.
More information about installation you can find in delivery email.
Please check the spam or junk mail folder too.
Windows 10 is designed to be compatible with the hardware, software, and peripherals you already own. And always-enabled updates help you stay current on features and security for the supported lifetime of your device.
Windows 10 gives you absolutely the best experience for doing what you do. Stay focused with easy ways to snap apps in place and optimize your screen space for getting things done. See your open tasks in a single view and create virtual desktops to gain space or group things by project, like Office apps for work and games for play.
Gaming just got even better with Windows 10. Not only do your existing games work great, but now you can play and connect with gamers across Xbox One and Windows 10 devices. From the best casual games to a new generation of PC gaming, Windows 10 is built for games you love.
Some users may afraid of uncustomed operation on Windows 10, but the fact is that it is a really easy and convenient experience with it. You will find it is quick to be familiar with and you can not live without it after a long-time using. No more to say, start a comfortable system from now!
How to activate Windows 10 Pro Pruduct Key:
The first way:
1. Download and install Windows 10 Professional.
2. Open system "Control Panel" - "All Control Panel Items" - "System", and click "Activate Windows" & "Change Product Key".
3. Click "Activation" and enter your Windows 10 Pro key.
The second way:
1. Download and install Windows 10 Pro Professional.
2. Right-click "Start Menu", choose "System".
3. Click "About", then Click "Change Product Key" or "Upgrade Your Edition of Windows".
4. Click "Change product key" and Enter your Windows 10 Activation Key.
This is the only review that matter as I am writing! I had to wait an hour until the e-mail was sent but it worked perfect! I was afraid that it could be fake since it took a full hour since the payment was done until the key was delivered!!
I recommend to contact the mail of keysoff if you also have problem with the delivery of the key! They were supportive and sent the key finally!
Perfect price and it works! Just be patient and contact keysoff if the mail is not sent!
Excelente site. Excelentes preços baratos
Fácil de encomendar e entrega rápida
Aprovechando un descuento consegui activar Windows!
Quick service and delivery at a great price
The delivery was equally much more faster than I would ever have imagined.
They always get it right.
Fast response. Very satisfied and keysoff will be my go to site when I need new keys. I will buy again.
Excellent quality and very fast delivery
легко заказать онлайн. хорошие цены. качество продукции еще предстоит выяснить.
This is what I needed and it provided me good stuff, well not just good stuff, their one of the best, will definitely purchase from them again and support them.
Great Product, Price, & Transaction
a good purchase, with a super fast delivery, excellent product
Very quick shipping and reasonable prices. I am happy with my purchase and will do so again
They delivered the correct product quickly and at a reasonable price. I would likely use them again. I would also recommend them to my friends and famil
I have also told many of my friends to try this website out and see for themselves. They to were very pleased.
easy to find. Nice price too
Super fast shipping and friendly contact. Recommended
Good price & fast speed
Product matches exactly with description. Super easy and fast ordering. Definitely recommended!
I thought the price was very reasonable, it was a very pleasant experience.
O preço e o serviço foram tão bons, com certeza voltarei na próxima vez, se precisar
Très facile à utiliser et à configurer. La clé CD est simple et rapide
I was skeptical at first as it sounded too good to be true, but when a couple min after the purchase, I got an email with the product key. I copy pasted the product key and it worked perfectly. It was very quick and simple, and I will be buying from them again if I or any of my friends need a windows key.
Fantastic prices, in seconds I completed my purchase and received the code. The code was redeemed successfully. Very pleased with the ease of service as experienced before.
Todo perfecto, key instantantanea, 0 problemas para canjear. Precio muy correcto.
Eccellente consegna, super consigliato ++++++
Très bon site j'ai reçu le code directement et ça toute suite fonctionnait. Je suis ravie de ce site
Toujours au top, entière satisfaction à chaque commande !
J'achète régulièrement sur le site, je n'ai jamais eu à m'en plaindre :)
Todo muy rápido y a buen precio
Sehr schnelle Lieferung
Good. A ++++++
Quick delivery of the code, and it worked instantly! Excellent.
Commande simple et rapide . Et un tarif hyper concurrentiel.
Always good when i use your services !
I really wanted to get a Windows 10 Professional key to activate my new custom gaming system and was really skeptical as this was my second attempt to buy a key online. In the past I had always purchased either a retail or OEM version with physical media (usually a CD or DVD). Now everything's online, including the ability to create your own media/usb stick for Windows, it was easy to setup and install. at no extra cost. I couldn't just upgrade using a previous windows key because they were all Home or Standard versions, and I wanted the Pro version this time around. The other place I had already tried (kinguin) wanted around 89 bucks, which in all fairness, I was ready to pay. However, they kept denying my Visa card. Frustrated, I decided to try Keysoff as it was also recommended by an article I read on TomsHardware.com where they also mentioned kingquin as being a reputable place to get legitimate keys. Perhaps kinguin was just having difficulties with their merchant software, I don't know, but at any rate they kept telling me there was an issue with my card (when I knew there wasn't). I confirmed this when my purchase at Keysoff went through IMMEDIATELY with NO ISSUES and within minutes, I had my product key sent via email. In windows 10 Pro I went to the Activation Settings page, clicked on Update Product Key, and entered the code with my fingers crossed.... Bada bing....bada boom! I JUST WORKED...After letting out a sigh of relief, I put that issue behind me. However, I thought it worthy of a review due to all the scamming out there, I just needed a place that worked that I can trust. So far, Keysoff.com has my 1st vote. Only time will tell what the future holds, but at this point I'm VERY Satisfied with them.
Gave the money at a good discount. Received the code worked no issues.
Key arrivata immediatamente e completamente funzionante
Thank you very much for the fast solution, very good thank you :)
Very good experience
Received my key fast and worked 100%
I am happy
Quick service. Activated Windows 10 Pro for just about LK RS. 1500/-. Thanks.
First purchase - success! thanks!
I was skeptical at first but for as little as it cost plus I had a coupon code it was definitely worth a shot. Once I placed my order I received a confirmation email and about a minute later I had my product key and it actually worked.
Quick and simple, Recommended
bought this a few times, always quick key delivery and works every time!
excellent service and good shop for buying keys
First time ordering from here went fast and smooth!!
Toujours très contente,service très rapide
Good experience as always. Key works fine
Purchase was Perfect i recieved my key in instant .. thank you very much .. you earned my thrust /
Haven't had any problems so far
Great buy very fast and cheap thank u for everything
Servi dans la minute ! Top service
Very fast easy to buy no complaints and good support team
Payement par Visa, simple et efficace le code arrive 5 seconde après +-
Excellent site, livraison rapide de la clé d'installation de Windows 10 Pro sans aucun problème de plus l'installation et multilingues après téléchargement de Windows sur le site de Microsoft. Je recommande ce site pour leurs professionnalismes et leur rapidité.
Great service once again!
Have bought from them 3 times in total so far, never had a problem!
Great service. 10/10 would recommended. Will be purchasing again.
Super Support, sehr schnelle Bearbeitung bei Problemen, günstige Preise ... Perfekt!
As ever Keysoff is a reliable online store which I shall continue to use as long as it stays up and running.
Fine and quick - and cheap
All ok. Everything went well.
Die Bestellung kam jedes Mal an und ich hatte bisher keine Probleme.
The price is low and the delivery is quick.
Rapide facile et clé qui fonctionne. Nickel
Quick, easy, great price. Got my code as soon as I purchased and it worked without a hitch. Already a returning customer and will continue to be.
I got what i payed for.
I was really impressed about prices of softwares on this site. Keysoff helped me to solve my problem
Good prices, upon registration and product selection, payment was fast and reliable. E-mail with product arrived shortly. Very satisfied with how they operate. Thank you.
Fast Key received it very quick and working perfect i will always come back to buy from this always and in the future
Good site and good prices.What you want more.
Absolutely amazing deals , only place I buy my softwares now
Each time quick and efficient !
This is the best platform for purchasing softwares !
Je recommande, super site, super promo, super tarif ! Merci !
Great price. Instant delivery. No issues. Very pleased.
Instant delivery, key worked fine and got the best price possible
Sem problemas, foram muito rapido na entrega do serial win 10 pro.
Totalmente recomendado, cumplen a cabalidad la entrega de las licencias y son totalmente verificables en Microsoft.
At first was hesitant because thought it was too good to be true,but it worked, super quick thank you guys will defs be returning here
Ottimo prezzo, codice abbonamento immediato
Excelente servicio técnico, muy rápido y viene siempre con la solución.
I buy many softwares on this website and all keys work.
Super geklappt. Prompte Lieferung des Keys per Mail - Aktivierung problemlos - sehr attraktive Preise!
I bought a Win10 Pro license key for my desktop home PC and worked like charmed. Then I made another purchase for same activation key for my laptop and, again, worked fine. Good service, very good price! Well done guys! Thank you!
Very smooth purchase and awesome deal :)
Everything OK, the licenses Windows 10 Pro have been sent immediately, everything works, maximum satisfaction. I really recommend it.
Already ordered a dozen licenses, no problem to activate them. And customer service is diligent.
Its excellent, i bought a Windows 10 Pro License and the provided product key Worked perfectly, actually i just have upgraded the edition from Home to Pro and worked as expected.
It was a very pleasant experience. I made my purchase and in 5 minutes I had the codes.
Great offer, fast service, plain-dealing.
Super geklappt. Prompte Lieferung des Keys per Mail - Aktivierung problemlos - sehr attraktive Preise!
I've bot a microsoft windows 10 license and it has worked perfectly. All instructions were quickly sent on my e-mail.
Quick and easy to buy.
Software works as intended.
Easy purchasing process and trustworthy when you need a reliable source for cheap softwares!
Very reliable source. Extremely quick and straightforward, no fuss, no shady software downloads. I already made several purchases and everything went smoothly.
I have bought many times windows 10 cd keys for Laptops that come without OS for customers and i never had any problem with the activation. Keep up the good work
Fast, trustable service, quite reasonable prices. I recomended to friend. He aldo made some shopping. Good luck.
Firstly I thought that it's some kind of fraud.
but everything works fine, good guides, thanks!
Great deal, everything works fine!
Very, very good prices and very good support in case of problems.
I had many concerns regarding this shop, because prices where very low, but I had an amazing experience.
I couldn't believe the price on the software I received. I never thought I'd actually own it. The instructions in the emails were just great. I was able to do the download very soon after my purchase. The experience was just great all around.
I was a little reluctant at first, and then the first key i received didn't work !
I contacted after sales service, and they answered with a new valid key really fast !
I recommend it !
Very good store, great service, quick response in post sale questions. Congratulations!!!
My first experience and it was Ok. No problem found, my product worked like a charm. Nothing bad to notice. I'll come back to buy more.
Honest people, Fast service and Fair pricing ... enjoyed every transaction.
Fast and reliable. I bought a Windows License and all the information in web page and email was pretty clear and easy to follow.
With 10 dollars a windows 10 pro license number ... what else? Excellent!
This is a good online store. I bought here a license for Windows 7 and Windows 10.
I purchase Windows 10 key from this site. I got support to fix the problem while installing while activating the key