“Microsoft Windows 10 Professional For 5 PCs – Lifetime License” has been added to your cart. View cart
Independent Microsoft key reseller
Genuine Microsoft License Keys, Delivered to Your Inbox in Minutes
Office, Windows and Windows Server product keys — activated on Microsoft’s official servers or your money back. One-time payment, lifetime license, instant email delivery.
Why Choose Our Windows Server and Office Solutions?
Discover the advantages of purchasing your Microsoft software from us.
Instant digital delivery
Receive your Windows Server or Office product key instantly via email, allowing for immediate deployment.
Certified Microsoft partner
As an authorized Microsoft partner, we provide genuine software and expert support for all your Windows Server and Office needs.
Competitive pricing
Get the best prices on the market for genuine Microsoft software, ensuring excellent value for your investment in Windows Server and Office products.
24/7 technical support
Our dedicated support team is available around the clock to assist you with any questions or issues related to your Windows Server or Office installation.
Perpetual licenses
Our Windows Server and Office licenses are perpetual. Once activated, your software never expires, providing long-term value with no recurring fees.
Lifetime license, one-time purchase
Once installed, your software never expires. With a permanent lifetime license, there is no need for monthly or yearly renewals. Enjoy peace of mind with a one-time purchase and no hidden fees.
Windows Server
Server 2025 and 2022 — Standard and Datacenter, including 16-core licenses. Perpetual keys with the official ISO download.
Learn how easy it is to purchase and activate your Windows, Windows Server and Office products.
Purchase
Add a product to your cart and check out with Visa, Mastercard, American Express, Apple Pay or Google Pay through our secure SSL payment gateway.
Receive
Right after checkout you receive an email with your product key, the official Microsoft download link and a step-by-step installation guide.
Activate
Enter the product key to activate your Windows, Windows Server or Office software. Need a hand? Our support team helps 7 days a week.
Buy with confidence — we’re a listed Microsoft AppSource partner
OfficeGSM is operated by Makers Unity LLC in the United States. Every license we sell is genuine and covered by our 180-day money-back guarantee, backed by real people on email and phone from Monday to Friday, 9am–6pm Eastern.
Verified Microsoft partner profile on AppSource
Secure SSL checkout — Visa, Mastercard, Amex, Apple Pay, Google Pay
Free installation help and activation support
Bulk and business licensing available on request
Latest Blog Posts
Stay informed with the latest tech trends, tips and news from OfficeGSM.
Unlock the full potential of your Windows operating system. Learn about key features, performance optimization techniques, and best practices to enhance your computing experience…
Unlock the full potential of Microsoft Office with our expert tips and tricks. Learn time-saving shortcuts, discover hidden features, and boost your productivity across…
Demystify Microsoft product keys with our comprehensive guide. Learn about different types of keys, how to use them, and best practices for keeping your…
Immediately after your payment is confirmed. The key, download link and installation instructions are sent to the email address you used at checkout — usually within a few minutes.
Are your Microsoft keys genuine?
Yes. We only sell 100% authentic Microsoft software. Every key activates directly on Microsoft’s servers and receives all official updates, backed by a lifetime warranty.
Why are your prices lower than retail?
We buy directly from Microsoft wholesalers and sell digital-only, so there are no boxes, shipping costs or middlemen. Those savings go to you.
What if the key doesn’t activate?
Contact our support team. We’ll help you activate it or replace the key; if it still can’t be activated, you get a refund under our 180-day money-back guarantee.
Which payment methods do you accept?
Visa, Mastercard, Maestro, American Express, Discover, Diners Club, JCB, Apple Pay and Google Pay. All payments are secured with SSL encryption.
Can I get help with installation?
Of course. Installation instructions come with every order, and our support team is available by email or phone if you need a hand.
