NextKeys.io Reviews 

Always reliable, instantly received the key, and great support

Easy to use! It's the lowest price for Windows 10 Pro I have seen. I used it to install Windows 10 Pro on a computer I am building.

I bought Office 2021 Pro Plus. Received my key without any problems in seconds after payment, instructions were included and easy to follow. Everything worked like a charm!

Good price, easy install, legit product.

We were originally unable to resolve my issue with getting the Key to work in my particular situation. The problem was you have to prep Windows 10 Home (active digital license) with a Windows 10 Pro key VK7JG-NPHTM-C97JM-9MPGT-3V66T while it has no internet connection. Let the machine restart, restore internet connection and then enter the key purchased from NextKeys.io. Worked great from there!

Amaze, Work great better than other service. On first time it worked.

Had one small hiccup in getting things to work, but that was mostly my fault. Support team reached out quickly and I was able to get it sorted. All keys are working like a charm.

Great pricing on Microsoft product keys with a fast delivery service. NextKeys delivers!

I had an issue with a Windows 11 CD key after formatting my PC (it worked fine for months prior, so probably my fault for not unlinking it first). Customer service helped quickly and were able to supply another cd key free of charge! Very happy

Purchased a couple of windows codes almost a year ago. got an error with the code and asked for help on the chat. Solved in 1 minute. Awesome!

Edited Review:
They responded once per day for four days and then sent me a functional key. I am pleased with the outcome but not impressed with the customer service, chatbot, or outdated instructions for screenshots. They should ensure that their keys are legitimate before sending them to buyers. I'll
consider my alternatives more seriously before buying from Kinguin and Nextkey.io in the future.

Original Review:
I bought an MS Office 2021 Pro key from NextKeys.io on Kinguin. I tried to activate MS Office 2021 online and via phone and Windows informed me that it was a used key for an "invalid product". I have experience activating MS Office and Windows OS products over the phone and this key did not work plain and simple. This also suggests Microsoft has flagged the key.

Initially, they responded to my customer service request within 12 hours but after I had spent another 2-3 hours replying with screenshots, NextKeys and Kinguin support became less frequent. Plus, they ask you to send a screenshot of a URL that no longer exists - it forwards you to the Microsoft 365 login.

Unless NextKeys and/or Kinguin can get their keys sorted I will continue to write 1-star reviews. I am going to post the same review on Kinguin's page. Send me a functional key this week and I'll consider editing this review.

This was too easy, I purchased and activated W11 in seconds. My recommendations.

Had an issue with activating one of the keys but customer support were able to provide a new one. All is working fine now

I seriously thought this place was going to be a scam. I always used to buy affordable OEM keys on eBay but they seem to have shut down ALL those retailers. It seemed impossible to find a key under $150 AUD online.
Then I found an article on Tom's Hardware that mentioned Kinguin as a potential retailer/marketplace. So, I looked it up and read reviews on Kinguin and the Nextkey shop selling the product. The reviews were 4.5/5 or better.. yet, people were commenting that they had trouble with keys (?)
So, I bought an OEM key for Win 11h.. and.. it said that it couldn't be activated. The key had already been used. Sigh (my partner was laughing saying "I told you so"). So I clicked "report issue" on Kinguin. They offered a full refund or a replacement key. I requested a replacement and the process was incredibly easy from there - just follow the prompts and it was activated in no time. The whole process from creating a Kinguin account, signing up to the newsletter for the 8% discount code, buying the key and getting it activated took less than 10 minutes. I highly recommend this company and will be back shopping with them within the week!

Had a problem with a product key a year after purchase. Josiah sorted it out quickly and efficiently. Thumbs up!

I ordered a windows 11 home key through kinguin and there was a bit of a mix up on my side but it was all sorted out by the nextkeys customer support who were very helpful

Ordered Win10 Pro ONLINE activation from NextKeys.io thru Kinguin.net. Installed per NextKeys.io instructions several times, but received error message key was not valid (0xc004C060). 5 days since initially reporting issue, I still have not received a solution from NextKeys.

a super painless cheap way to buy keys. I dont often review many websites my win11 key went right through and worked immediately and activated my Win11 on parrallels for Mac. Cheap and working doesnt often happen.

Placed 2 orders. Everything went fine, with no delays. Keys work good, no issues. Had some issues with discount codes, but support solved the problem in a best way. I would recommend this service to my friends.