The honest way to buy genuine Microsoft software for less
OfficeGSM is an independent, US-based store for genuine Microsoft license keys. We sell Microsoft Office, Windows and Windows Server product keys, delivered by email in minutes, priced at a fraction of retail and backed by a written 180-day money-back guarantee. This page explains who we are, how our pricing works and what you can expect from us.
Genuine Microsoft keys, instant delivery, no subscription
We make it simple and affordable to get a genuine Microsoft license without paying full retail price or signing up for a subscription you don’t need. Buying a Microsoft Office 2021 Professional Plus license key, a Windows 11 Pro product key or a Windows Server license works the same way: order through our encrypted checkout, and your product key and official download link arrive in your inbox within minutes, at any hour.
Every key activates through Microsoft’s official activation system. You pay once, you own the license for life, and there are no renewal fees, no auto-billing and no hidden subscription. We’re just as clear about what you’re buying: each product page explains what the license covers, how many devices it activates and how activation works.
Browse all Microsoft keys
Why genuine Microsoft keys can cost a fraction of retail
OfficeGSM offers Microsoft software products with digital delivery. Compare the edition, license channel, device count and permitted use before ordering. Price and activation status alone do not establish equivalent licensing rights.
A digital-only reseller strips most of that away. There’s nothing to manufacture or ship and no retail chain taking a cut. We source genuine license keys, deliver them by email and pass the savings on. The software you install is identical, downloaded from Microsoft and activated on Microsoft’s own servers. What changed is the way it’s sold, not the product.
That’s also why we don’t need gimmicks. No fake countdown timers and no pressure tactics. The price on the product page is the price you pay, one time, and the guarantee underneath it is real.
What we deliberately don’t do
- We don’t pretend to be Microsoft. We’re an independent reseller with a verified AppSource partner listing, and we say exactly that, nothing more.
- We don’t sell mystery licenses. Every listing explains what you get and how many devices it covers before you pay.
- We don’t invent reviews or numbers. If we show a figure or a customer quote, it’s real.
- We don’t disappear after checkout. Activation help is most of what our support team does, and the guarantee makes a failed key our problem, not yours.
Four commitments behind every order
What every customer can count on, from a single Windows key to licenses for a whole office.
No boxes, no shipping
Digital product keys mean no manufacturing, no discs and no warehouses, and none of those costs in your price. Your key exists to be emailed, and it is, within minutes.
Clear license details
Every listing explains what the license covers, how many devices it activates and how activation works, so you know exactly what you own before you pay.
A guarantee in writing
If a key doesn’t activate and we can’t fix it, we replace it or refund you within 180 days. The promise is part of every order, not buried in fine print.
Real people on support
Our team answers by email every day and by phone Monday to Friday, 9am to 6pm Eastern. Walking customers through activation is our daily work.
We’re not Microsoft, and we don’t pretend to be
OfficeGSM is not affiliated with, sponsored by or endorsed by Microsoft Corporation. Makers Unity LLC, the company that runs the store, has a verified partner profile on Microsoft AppSource, but we’re an independent reseller and we say so plainly, on this page and in our footer.
Judge us on the promises that are ours to make: genuine keys that activate on Microsoft’s servers, delivery in minutes, clear license terms and a money-back guarantee we honor. Want the full picture of how discounted Microsoft keys work and how to buy safely anywhere? Our genuine and legal guide answers the hard questions in plain English.
How to tell if a Microsoft key seller is legit (including us)
Is a cheap Microsoft key legit? We’d rather give you the checklist than ask for blind trust. Wherever you buy a Windows product key or Microsoft Office key, here or somewhere else, a trustworthy seller should pass every one of these tests:
- A written activation guarantee. If a store won’t promise in writing that the key activates or your money comes back, walk away. Ours is 180 days, replacement or refund.
- Clear license details on every product. What the key covers, how many devices and how it activates. A store that hides this is hoping you won’t ask.
- Real, findable contact details. A company name, address, email, phone number and support hours. Faceless stores have nothing to lose by ignoring you.
- Honest claims. A store calling itself “Microsoft” or an “official Microsoft store” when it isn’t is a red flag, not a reassurance.
- Normal activation. A genuine key is entered in Settings or the Office account page. Scripts, KMS tools and “activators” are a sign the key isn’t what it claims.
- Secure checkout and a readable refund policy. Encrypted payment through recognized providers, and a clear refund window with clear conditions.
We built OfficeGSM to pass this checklist line by line. It’s the standard we’d expect as buyers, applied to ourselves as sellers.
What happens after you click “Buy”
From checkout to an activated copy of Windows, Office or Windows Server, usually in less than an hour.
Pay with Visa, Mastercard, American Express, Apple Pay or Google Pay over an SSL-encrypted connection. It takes about a minute.
Your genuine product key and the official Microsoft download link arrive within minutes. Check spam if you don’t see it.
Enter the key through Microsoft’s standard activation. Stuck at any step? Our support team walks you through it.
If activation fails and we can’t fix it, you get a replacement key or a full refund, your choice.
A real business you can reach
Faceless stores give this market a bad name, so here’s who you’re dealing with. OfficeGSM is operated by Makers Unity LLC in the United States, and the store was designed by OfficeGSM INFO LLC, 1309 Coffeen Avenue STE 1200, Sheridan, WY 82801. Makers Unity LLC has a verified partner profile on Microsoft AppSource.
Support is handled by people, not bots. We answer phone calls Monday to Friday from 9:00am to 6:00pm Eastern, and we read and reply to every email. When something about an order isn’t right, a person on our team fixes it.
We serve customers worldwide. Because delivery is digital, a buyer in London or Lagos gets the same instant email as a buyer in New York, and the same 180-day money-back guarantee.
Our mission
- Authenticity
- Every software key is genuine and unused, and activates on Microsoft’s own servers.
- Affordability
- Fair pricing with no hidden fees and no subscriptions: one payment, lifetime license.
- Customer satisfaction
- Smooth orders and dedicated support before and after your purchase.
- Security
- SSL-encrypted checkout with Visa, Mastercard, Amex, Apple Pay and Google Pay. We never store card details.
Questions people ask about OfficeGSM
Straight answers about who we are, how our Microsoft keys work and how to reach us.
Who is OfficeGSM and what do you sell?
OfficeGSM is an independent online store for genuine Microsoft license keys, run from the United States by Makers Unity LLC. We sell Microsoft Office product keys (Office 2024, 2021, 2019 and 2016 for Windows, plus Office for Mac), Windows 11 and Windows 10 product keys, Windows Server 2025 and 2022 licenses, and standalone apps such as Word, Access, Visio and Project.
Every key is delivered digitally by email, usually within minutes of payment, together with the official Microsoft download link and an installation guide. Each license is a one-time purchase with no subscription, and every order is covered by our 180-day money-back guarantee. Our registered address is 1309 Coffeen Avenue STE 1200, Sheridan, WY 82801, US, and you can reach us at contact@officegsm.com or +1 (347) 201-7406.
Are you affiliated with Microsoft?
No. OfficeGSM is an independent reseller and is not affiliated with, sponsored by or endorsed by Microsoft Corporation. The company behind the store, Makers Unity LLC, has a verified partner profile on Microsoft AppSource, which you can check yourself through the link on our home page. That listing shows we’re a real, identifiable business, but it doesn’t make us Microsoft, and we never present it as an authorization to speak for Microsoft.
What we do promise is ours to keep: every key we sell is a genuine Microsoft product key that activates through Microsoft’s official activation servers. If it doesn’t, and our team can’t fix it with you, you get a replacement key or your money back. We think being plain about this is part of earning trust in a market where many stores blur the line.
Why are your Microsoft keys so much cheaper than the Microsoft Store?
OfficeGSM offers digital products, with prices that vary by edition and quantity. Compare the actual edition, license channel, device count and permitted use before comparing prices.
A lower price or digital delivery does not establish that two offers have the same licensing rights. Ask us for product details and supporting records if you need them for a personal or business purchase.
Microsoft updates follow the lifecycle of the software release; a new key does not restart that lifecycle. See the Office version comparison and Windows license-channel guide for questions to consider.
How do I know your Windows and Office keys are genuine?
Download software from Microsoft and check activation through Windows Settings or the Office account screen. Those screens show activation status, but activation alone is not proof of licensing rights.
Before buying, confirm the license channel, device count, permitted use, any qualifying license requirements and the documentation supplied. Keep your invoice and licensing records. OfficeGSM is an independent reseller, and a marketplace profile does not establish authorization for every product.
Contact us with questions before purchase or with the order number and error message if activation fails. Refund eligibility follows the 180-day refund policy.
What exactly does your 180-day guarantee cover?
If a product key doesn’t activate and our support team can’t resolve it with you, you receive a replacement key or a full refund, your choice, within 180 days of purchase. The guarantee applies to every product in the store: Microsoft Office, Windows, Windows Server and the standalone Office apps.
In practice most activation problems are solved in one conversation. A mistyped character, a leftover Office trial, a Home edition installed instead of Pro, or a PC with the wrong date and time cause the majority of errors. Send us your order number and a screenshot of the error, and we’ll walk you through the fix. The full terms are on our refund policy page, written in plain English with no hidden conditions.
Do you sell to businesses as well as individuals?
Yes. Alongside single keys for home users, we supply multi-PC packs such as Windows 11 Pro for 5 PCs and Office 2021 Professional Plus for 5 PCs, plus Windows Server 2025 and 2022 licenses in Standard and Datacenter editions, including 16-core license packs.
Windows Server licensing depends on physical cores, the number of virtual machines you run and, often, Client Access Licenses for the users or devices that connect. Tell us your core count, user count and what the server will do, and we’ll help you work out the right edition and quantities at no charge. For larger orders we can prepare a quote and an invoice with your company details, so your licensing records are clean. Use our contact page to start.
How can I reach a real person at OfficeGSM?
Email contact@officegsm.com, call +1 (347) 201-7406, or use the form on our contact page. Our team answers phone calls Monday to Friday, 9:00am to 6:00pm Eastern, and email messages are read and answered by people, not bots, every day of the week.
For the fastest help with an order, include your order number, the product you bought and a screenshot of any error message. Activation help is the most common thing we do, so don’t worry about asking a basic question. We’d much rather spend five minutes guiding you through Settings than have you stuck with software that isn’t activated. Our Help Center and download and activation guides also cover the most common steps if you prefer to do it yourself.
Where do you deliver, and do the keys work in my country?
OfficeGSM delivers orders digitally by email and displays store prices in US dollars. Your bank or payment provider may convert the payment into another currency.
Digital delivery does not establish worldwide licensing rights. Region, language and use restrictions can vary by product and license channel. Contact us before purchase to confirm that a specific product fits your country, device and intended use.
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