Genuine Microsoft product keys, delivered to your inbox in minutes

Genuine Microsoft product keys, delivered by email within minutes

Windows 11, Microsoft Office and Windows Server licenses as a one-time purchase. Official download link and guide included, plus a 30-day money-back guarantee.

Placeholder visual: genuine Microsoft license keys delivered by email

Our best-selling licenses

The editions most customers choose: Windows 11 Pro, Office 2024 and 2021 Professional Plus, and Windows Server 2025 Standard. Each is a perpetual license with the license type stated on the product page.

Shop by category

Operating systems, Microsoft Office suites, standalone apps such as Visio, Project and Visual Studio, and Windows Server with RDS CALs. Every key is genuine and activates on Microsoft’s servers.

Windows 11 Pro and Home product keys, genuine license delivered by email

Windows 11 keys

Pro, Home, Pro for Workstations, N editions, Education and IoT Enterprise LTSC 2024.

Windows 10 Pro product key for a desktop PC

Windows 10 keys

Pro, Home, Education and Pro for Workstations for PCs that stay on Windows 10.

Microsoft Office 2024 Professional Plus key, one-time purchase

Office 2024 keys

Professional Plus, Standard LTSC and Home and Business for Windows and Mac.

Microsoft Office 2021 product key for Windows and Mac

Office 2021 keys

Professional Plus with Access and Publisher, plus Home and Business for Mac.

Single Microsoft Office app licenses for Word, Excel, Outlook, Visio and Project

Office apps

Word, Excel, Outlook, Access, Visio, Project and Visual Studio as single licenses.

Windows Server 2025 license and RDS CALs for business servers

Windows Server

Server 2025 and 2022 Standard and Datacenter, RDS user CALs and SQL Server.

Get your key in 3 easy steps

No account to create, no waiting for a courier. Most customers finish before their coffee is ready.

1

Choose your edition

Pick Windows, Office or Server, check the edition notes on the product page, and pay securely with a card, Apple Pay or Google Pay.

2

Receive the key by email

Within minutes you get the product key, the official Microsoft download link and a short installation guide. The key is also saved in your account.

3

Install and activate

Enter the key in Settings or in Office under File, Account. If Microsoft asks for phone activation, send us the Installation ID and we handle it.

Frequently asked questions

Plain answers to the questions buyers ask us most: retail, OEM or volume, Home or Pro, moving a key to a new PC, and what happens if Microsoft asks for phone activation. The FAQ page covers ordering, activation and refunds in more detail, and a person answers email every day.

Are the Microsoft product keys sold here genuine?

Yes. Every Windows 11 Pro key, Microsoft Office product key and Windows Server license we sell is a genuine Microsoft product key that activates through Microsoft’s own activation servers. We do not sell cracks, activators or modified installers. Your delivery email contains the 25-character key, the official Microsoft download link and a short installation guide, so you download the software directly from Microsoft and enter the key exactly as you would with a boxed copy from a retail store.

Software in Store is operated by MAKERS UNITY LLC, a US company based in Sheridan, Wyoming. We are an independent reseller, and we are not affiliated with or endorsed by Microsoft. We believe transparency is what separates a trustworthy key store from a random marketplace listing, so each product page states the license type, whether retail, OEM or volume, along with the number of PCs the key covers. You know exactly what you are buying before you pay, and the key you receive matches that description.

Every key is covered by our 30-day money-back guarantee. If a key cannot be activated and our support team cannot resolve the issue, we send a replacement key or refund the order in full. A real person answers email seven days a week at support@softwareinstore.com, and we handle Microsoft phone activation whenever it is requested. You can read more about our company and our guarantee on our Why Trust Us page, or browse the full range of genuine Microsoft product keys in our shop.

How fast is the delivery after I pay?

Delivery is digital and usually takes only a few minutes. As soon as your payment is confirmed, our system sends an email to the address you entered at checkout. That email contains your 25-character Microsoft product key, the official Microsoft download link for your edition, and a short installation guide that walks you through activation. Whether you order a Windows 11 Pro key, a Microsoft Office product key or a Windows Server 2025 license, the process is the same, and we deliver seven days a week, including weekends and holidays.

We also save every key under My Account on our site. If the email lands in a spam or promotions folder, or if you need to look up a key years later for a reinstall, you can log in and find it there. We recommend checking your spam folder first if the email has not arrived within a reasonable time, and adding our address to your contacts so future messages reach your inbox without delay.

In the rare case that an order needs a manual review, for example when a payment processor flags a transaction, delivery can take a little longer, and our team will contact you by email if we need anything from you. If you have not received your key and cannot find it in My Account, write to support@softwareinstore.com and a person will respond, seven days a week. For a step-by-step overview of ordering, delivery and activation, see our How It Works page, and if anything is unclear, reach us through the Contact Us page.

Why do genuine Microsoft keys cost less here than at the Microsoft Store?

The keys are the same genuine Microsoft product keys. The difference is in how they are sold. The Microsoft Store sells mostly retail licenses at full list price, bundled with Microsoft’s own marketing and support overhead. We are an independent reseller that sells digital keys only. There is no box, no disc, no physical shipping and no retail storefront, and those savings are reflected in what you pay for a Windows 11 Pro key or a Microsoft Office product key.

License type also plays a role. Alongside retail keys, we sell OEM and volume licenses, which Microsoft prices differently because they carry different rights. An OEM Windows 11 Pro key, for example, stays with the first PC it activates, while a retail key can be moved to a new PC later. A volume key for Office 2024 Professional Plus is intended for organizations and comes with a limited number of activations. We state the license type clearly on every product page so you can choose the one that fits how you plan to use the software. Many home users and small businesses find that an OEM or volume license covers their needs perfectly well.

What does not change is the software itself. You download Windows or Office from Microsoft’s official servers, the key activates through Microsoft, and you receive every update Microsoft releases for that version. We add a 30-day money-back guarantee and email support seven days a week. You can read more about our approach on our Why Trust Us page and compare editions in our Windows 11 category.

Is this a lifetime license or a subscription?

Everything we sell is a perpetual license, which means a one-time purchase with no subscription and no recurring fees. When you buy a Windows 11 Pro key or an Office 2024 Professional Plus key from us, you pay once and the software keeps working for as long as you use that PC. There is no monthly or annual renewal, no account that expires and no feature that switches off when a billing period ends. Some of our product names include the word Lifetime for this reason, and it refers to the life of the installation on the licensed computer.

This is the main difference between our products and Microsoft 365. Microsoft 365 is a subscription: you pay every month or year, and the apps stop working in full if you stop paying. A perpetual Office license, such as Office 2024 or Office 2021, is fixed to that version. You receive security and stability updates from Microsoft for that version, but you do not automatically receive the next major release. Microsoft supports Office 2024 until October 9, 2029, and mainstream support for Office 2021 ends October 13, 2026, so Office 2024 is the longer-lived choice for a new purchase.

Windows works the same way. A Windows 11 Pro license is tied to the PC it activates and continues to receive Windows updates for as long as Microsoft supports Windows 11. You can see the full Office 2024 lineup in our Office 2024 category or go straight to the Office 2024 Professional Plus key for 1 PC.

What is the difference between a retail, OEM and volume key?

All three are genuine Microsoft license types, and the software you install is identical. The difference is in transfer rights and intended use, so we state the type on every product page. A retail key is the most flexible. It is licensed to you rather than to a specific machine, so if you replace your PC you can remove the license from the old computer and activate the same Windows 11 Pro key or Microsoft Office product key on the new one. Retail keys are the right choice if you upgrade hardware often or want the option to move a license later.

An OEM key is bound to the first PC it activates. It is the same type of license that computer manufacturers preinstall, and it stays with that motherboard for the life of the machine. You can reinstall Windows on the same PC as many times as you need, but you cannot move the license to a different computer. For a desktop or laptop you plan to keep, an OEM Windows license is a practical option.

A volume key, often called a MAK key, is designed for organizations that activate many machines. It carries a limited number of activations and is meant for business, school or institutional deployment rather than for resale to individuals one by one. Our multi-PC products, such as the Office 2021 Professional Plus key for 5 PCs, are built for exactly this scenario. If you are unsure which type fits, our How It Works page explains the options, and our team is happy to advise by email.

What happens if the key does not activate?

First, do not worry. Most activation problems have a simple cause, and our team resolves them quickly. The most common issues are a typo in the 25-character key, an edition mismatch (for example, entering a Windows 11 Pro key on a PC that has Windows 11 Home installed, or an Office 2024 Professional Plus key on a Microsoft 365 installation), or an older key already present on the machine. Our installation guide covers these cases, and the download link we send points to the exact Microsoft installer your key is meant for.

If the key still will not activate, email support@softwareinstore.com with your order number and a screenshot of the error message. A real person answers seven days a week. Sometimes Microsoft asks for phone activation instead of online activation, which involves an Installation ID and a Confirmation ID. We handle that with you step by step, and it does not cost anything extra. In our experience, this resolves the large majority of cases within a single email exchange.

When a key genuinely cannot be activated and our support team cannot fix it, our 30-day money-back guarantee applies: we send a replacement key or refund the order in full, your choice. We never leave a customer with a product that does not work. You can read the full details of our guarantee on the Why Trust Us page, and reach us any time through the Contact Us page.

Does Windows 10 still work after end of support, and should I move to Windows 11?

Windows 10 still boots, runs your programs and activates with a genuine key after end of support. What changed on October 14, 2025 is that Microsoft stopped releasing security updates, bug fixes and technical support for Windows 10 Home and Pro. A PC that stays on Windows 10 keeps working, but every new vulnerability discovered from that date on remains unpatched, which is a real concern for any machine connected to the internet or used for banking, email or work files.

Our advice for most people is to move to Windows 11 if the hardware allows it. Windows 11 requires a 1 GHz dual-core 64-bit processor, 4 GB of RAM, 64 GB of storage, UEFI firmware with Secure Boot, and a TPM 2.0 chip. Most PCs built in the last several years meet these requirements. A Windows 11 Pro key is a one-time purchase, and the Windows 11 Home vs Pro decision is the same as it was with Windows 10: Pro adds BitLocker, Remote Desktop hosting, Hyper-V and domain join.

If your PC cannot run Windows 11, or you have a specific reason to stay on Windows 10, we still offer genuine Windows 10 keys, including the Enterprise LTSC editions that follow a longer, separate support schedule for specialized devices. Browse the Windows 10 category for those options. Whatever you choose, every key we sell is genuine, delivered by email within minutes, and backed by our 30-day money-back guarantee.

Laptop running Windows 11 activated with a genuine Windows 11 Pro product key

Windows 11 Pro key, Windows 11 Home, Workstations and IoT LTSC 2024

A Windows 11 key from Software in Store is a genuine retail or volume license that activates in Settings, System, Activation in under a minute. Choose Home for a family PC, Pro for BitLocker, Remote Desktop and Hyper-V, Pro for Workstations for high-core machines, or IoT Enterprise LTSC 2024 for a build that stays unchanged for years. Windows 10 Pro keys remain available for older hardware, along with the Windows 11 Home to Pro upgrade key.

  • Windows 11 Pro and Windows 11 Home product keys
  • Official Microsoft ISO and Media Creation Tool download link included
  • Digital license stays tied to your PC after activation
  • Activation errors fixed by our team or your money back
Laptop with an Office 2024 Professional Plus document and spreadsheet open

Microsoft Office 2024 Professional Plus and every Office key back to 2016

Office 2024 Professional Plus gives you Word, Excel, PowerPoint, Outlook, OneNote and Access for one payment, supported by Microsoft until October 2029. Office 2021 Professional Plus still includes Publisher and remains a popular choice. Home and Business editions cover Mac, and single apps such as Excel 2024, Outlook 2021, Visio and Project are sold on their own. No Microsoft 365 subscription, no monthly fee.

  • Office 2024 Professional Plus and Office 2021 keys
  • Activate in Word under File, Account, Change Product Key
  • Home and Business keys redeem at setup.office.com for Windows or Mac
  • Phone activation and Confirmation ID handled by our team when needed
Rack server ready for a Windows Server 2025 Standard license

Windows Server 2025 license, RDS user CALs and SQL Server for growing businesses

Windows Server 2025 Standard and Datacenter are licensed per core with a 16-core minimum per server. Standard covers two virtual machines, Datacenter covers unlimited VMs, and every user or device that connects still needs a CAL. We sell the 16-core license keys, 50-user RDS CAL packs and SQL Server Standard, and we explain what each one covers before you order.

  • Windows Server 2025 Standard 16-core and Server 2022 licenses
  • RDS 50 user CAL packs for Server 2025 and 2022
  • SQL Server 2022 and 2019 Standard licenses
  • Volume pricing and invoices for IT teams on request

Why buy from Software in Store

Genuine keys like the Microsoft Store, with the guidance, email delivery, 30-day guarantee and seven-day support that key marketplaces rarely offer. Every claim is one you can verify against Microsoft.

Software in StoreMicrosoft StoreKey marketplaces
Genuine license that activates on Microsoft serversYesYesNot guaranteed
Key delivered by email within minutesYesYesDepends on the seller
Official download link and setup guide includedYesYesNo
30-day money-back guaranteeYesShort, conditionalDepends on the seller
Support until the software is activatedYesTicket queuesNo

Guides and comparisons

Edition comparisons, activation walkthroughs and licensing explainers for Windows, Office and Windows Server, from the people who answer our support email.

Get your genuine Microsoft key in the next few minutes

Windows 11, Office 2024 Professional Plus and Windows Server 2025 licenses. Secure checkout, email delivery, 30-day money-back guarantee.

Genuine Microsoft keys

Every license activates on Microsoft's own servers

Email delivery in minutes

Key, official download link and guide, right after payment

30-day money-back guarantee

Replacement key or full refund if we cannot activate it

Real support, 7 days a week

A person answers, from download to activation