Frequently Asked Questions — Microsoft License Keys

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.

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.

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.

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.

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.

Yes, and you do not need to reinstall Windows to do it. If your PC came with Windows 11 Home, you can buy our Windows 11 Home to Pro upgrade key, open Settings, go to System, then Activation, choose Change product key, and enter the 25-character key from your delivery email. Windows downloads the Pro components, restarts once, and your files, apps and settings stay in place. The whole process typically takes only a few minutes on a modern PC.

The Windows 11 Home vs Pro question comes down to features. Windows 11 Pro adds BitLocker drive encryption, Remote Desktop hosting so you can connect to your PC from elsewhere, Hyper-V for running virtual machines, Windows Sandbox, the ability to join a company domain or Azure Active Directory, and Group Policy controls. Home users who work from home, handle sensitive files or run development tools are the most common reason we see for upgrading. If your PC has no Windows license at all, or you are doing a clean install, a full Windows 11 Pro key is the right product instead of the upgrade key.

Both products are perpetual licenses, delivered by email within minutes of payment, and covered by our 30-day money-back guarantee. If the upgrade does not activate on the first try, our support team answers seven days a week and can help with Microsoft phone activation if Windows asks for it.

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.

Activation itself does not require a Microsoft account. A Windows 11 Pro key or a Microsoft Office product key is verified by Microsoft’s activation servers when you enter it, and that step is separate from signing in to any account. That said, Microsoft’s setup process for current versions of Windows and Office does involve an account in some situations, so it helps to know what to expect before you install.

For Windows 11, Home and Pro editions ask you to sign in with a Microsoft account and connect to the internet during initial setup. Once Windows is running, you can create a local account if you prefer. Enterprise, Education and LTSC editions are designed for organizations and do not push a personal Microsoft account in the same way. Your Windows product key works the same regardless of which account you use on the PC.

For Office, it depends on the edition. Retail editions such as Office 2024 Home and Business or Home and Student are redeemed by signing in to a Microsoft account once, which links the license to that account and makes future reinstalls easy. Office Professional Plus editions, including Office 2024 Professional Plus, activate with the key directly from within the applications and do not require an account. The installation guide in your delivery email states which method applies to the product you bought. If you would like to know before purchasing, see our How It Works page or browse the Office 2024 category, where each product page lists the license type.

Yes. A perpetual license is a one-time purchase, and reinstalling on the same PC is always permitted. If your hard drive fails, you reset Windows, or you simply want a clean start, download the installer again from the official Microsoft link in your delivery email and enter the same 25-character key. We also keep every key under My Account on our site, so you can retrieve it years later even if the original email is gone. That applies to every Windows 11 Pro key, Windows 10 key and Microsoft Office product key we sell.

For Windows, activation is linked to your PC’s hardware after the first activation. When you reinstall the same edition on the same computer, Windows usually reactivates automatically once it connects to the internet, and if it does not, entering your key again completes the process. If you replace major components such as the motherboard, Windows may treat it as a new PC. A retail key can be activated on the new machine after it is removed from the old one, while an OEM key stays with the original PC.

For Office, reinstall from the Microsoft download link and activate with your key or, for account-linked retail editions, by signing in to the Microsoft account you used the first time. Office 2024 Professional Plus and Office 2021 Professional Plus reinstall this way without any subscription or renewal. If a reinstall ever triggers an activation error, our team is available seven days a week and can assist with Microsoft phone activation. Details are on our How It Works page, and the full Office range is in our Office 2024 category.

For most buyers who want a one-time purchase, we recommend Office 2024 Professional Plus. It is the current perpetual release, it is supported by Microsoft until October 9, 2029, and it includes Word, Excel, PowerPoint, Outlook, OneNote and Access. Microsoft discontinued Publisher in the 2024 release, so if you rely on Publisher you will want Office 2021 Professional Plus instead, which still includes it. Both are perpetual licenses with no subscription, delivered by email within minutes of payment.

Office 2021 Professional Plus remains a solid choice if you prefer the familiar 2021 interface, need Publisher, or are matching other PCs in your office. Keep in mind that Microsoft’s mainstream support for Office 2021 ends on October 13, 2026, so Office 2024 gives you a longer runway of updates for the same type of one-time purchase. If you only need the core apps, Office 2024 Home and Business (Word, Excel, PowerPoint, Outlook and OneNote) or Office 2024 Home and Student (the same without Outlook) are lighter options, and the Home and Business edition is available for PC or Mac.

Microsoft 365 is different. It is a subscription that renews every month or year, bundles cloud storage and always moves you to the newest version. We do not sell subscriptions. If you would rather pay once and own the software, compare the Office 2024 Professional Plus key with the Office 2021 Professional Plus key and pick the one that matches the apps you actually use.

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.

Windows Server 2025 and Windows Server 2022 are licensed per physical core. Every server needs licenses that cover all of its cores, with a minimum of 16 cores per server. That is why our most common Windows Server 2025 license is the 16-core pack: it covers a typical single-socket or dual-socket server in one purchase. If your server has more than 16 cores, you license the additional cores as well.

The choice between Standard and Datacenter comes down to virtualization. A Windows Server Standard license covers two operating system environments, which in practice means the Hyper-V host plus two virtual machines. If you need more VMs on the same host, you stack additional Standard licenses or move to Datacenter. Windows Server Datacenter allows unlimited virtual machines on the licensed hardware, which is why it suits consolidated hosts and private cloud setups. Both editions are perpetual licenses.

Client access is licensed separately. Every user or device that accesses the server needs a Client Access License, or CAL. If people connect through Remote Desktop, they need Remote Desktop Services CALs in addition to the standard CALs. We sell these as 50-user packs, for example the Windows Server 2025 RDS 50 User CAL pack. A small business setup might therefore be one Windows Server 2025 Standard 16-core license plus the CALs for its users. If you are not sure how many licenses your environment needs, email our team with your server details and we will help you work it out before you buy.

It depends on the product, so we make this clear on each product page. Microsoft Office Professional Plus editions, including Office 2024 Professional Plus and Office 2021 Professional Plus, are Windows-only and will not install on macOS. For a Mac, you need an edition Microsoft builds for macOS. We sell Office 2024 Home and Business for 1 PC or Mac, which lets you choose the platform at install time, along with Office 2021, Office 2019 and Office 2016 Home and Business for Mac, and Word 2024 for Mac as a single app. Office for Mac editions are perpetual licenses just like their Windows counterparts.

A Windows 11 Pro key is a license for the Windows operating system, so it does not turn a Mac into a Windows PC on its own. It can, however, be used to activate Windows inside a virtual machine on a Mac using virtualization software, or on a Windows partition where the Mac supports one. The key activates in the same way it would on any PC, and the license terms are the same. If you plan to do this, check that your virtualization software supports the Windows edition you intend to run.

If you are unsure which edition matches your machine, read the platform note on the product page before ordering, or ask us by email and we will point you to the right product. You can find every Mac-compatible Office product by browsing our Office 2024 category and filtering for Home and Business. Every purchase is delivered by email within minutes and covered by our 30-day money-back guarantee.

Every order generates an order confirmation by email, and your full order history is stored under My Account on our site. If your accounting department needs a formal invoice showing your company name, address and tax details, email support@softwareinstore.com with your order number and the details you want printed on it, and our team will send an invoice you can file or forward. We do this for individual purchases as well as larger orders, seven days a week.

For businesses buying several licenses, we offer multi-PC products that make deployment easier and keep paperwork to a minimum. Examples include our Windows 11 Pro key for 5 PCs and the Office 2021 Professional Plus key for 5 PCs. Windows Server 2025 licenses, RDS CAL packs and SQL Server are also available for companies building out infrastructure. All of these are perpetual licenses, and the license type is stated on each product page so you know whether you are buying retail, OEM or volume.

If you need a larger quantity than our standard packs, or you are quoting a project for a client, contact us through the Contact Us page with the products, quantities and any deadline. We will reply with a quote and the delivery timeline. Payment is by card, Apple Pay or Google Pay through an encrypted, PCI-compliant checkout, and our store never sees your card number. Software in Store is operated by MAKERS UNITY LLC in Sheridan, Wyoming, and every key we sell is genuine and covered by our 30-day money-back guarantee, whether you order one Microsoft Office product key or a batch for an entire team.

Delivery is digital and nearly instant. Within minutes of completing checkout you receive an email containing your product key, an official download link for the software, and a clear step-by-step installation and activation guide written for non-technical users. There is no physical box and no shipping wait, a purchase made at 2 a.m. on a Sunday is delivered exactly as fast as one made on a weekday afternoon, because delivery is automated 24/7, including weekends and public holidays. If the email has not appeared within a few minutes, check your spam or promotions folder first; automated emails occasionally land there. Still nothing? Contact support@softwareinstore.com and we will resend your key right away. We recommend keeping the delivery email safe: your license is yours for life, and you may want the key again if you ever reinstall Windows or Office on the same machine. The download links we send point to official Microsoft sources, so the software you install is exactly what Microsoft publishes, the license key we deliver is what unlocks it.

First: don’t panic, activation problems are rare, and the overwhelming majority are fixed in minutes. The most common causes are simple: a mistyped character in the key, an edition mismatch (for example a Windows 11 Pro key entered into a Windows 11 Home installation that needs upgrading first), leftover traces of an older Office installation, or a regional installer variant. Our support team resolves these situations every single day. Contact us at support@softwareinstore.com, support is free, answers 24/7, and will walk you through the fix step by step, including guiding you through Microsoft’s phone activation when that is the fastest path. We stay with you until the software is installed and activated. And if a key genuinely cannot be activated and our team cannot resolve it, the money-back guarantee applies and you receive a full refund. In other words: the worst case of buying from Software in Store is getting your money back, and the normal case is activated software within the hour.

We accept major credit and debit cards and popular digital wallets, all processed by established payment providers over fully encrypted connections. Your card details are handled entirely by the payment processor and never touch our servers, we simply never see them. You will receive an order confirmation email immediately after payment, followed within minutes by the delivery email containing your license key. If anything about a payment looks unusual to you, a duplicate charge, a missing confirmation, contact support@softwareinstore.com with your order details and we will straighten it out promptly.

Yes. Every order is covered by our money-back guarantee: if your license key cannot be activated and our support team cannot resolve the problem, you receive a full refund, see our Refund Policy for the details. We ask that you contact support first, simply because nearly every activation issue is fixable in minutes and most customers end up with working software the same day. Refund requests are handled by a human, not a bot wall, and processed back to your original payment method.

Absolutely, this is one of the most useful things our support team does. Not sure whether you need Windows 11 Home or Pro? Whether Office 2021 Professional Plus or Office 2024 Home & Business fits better? How many cores to license for Windows Server 2025, or whether you need User CALs or Device CALs for Remote Desktop? Email support@softwareinstore.com with what you are trying to do and we will recommend the exact license, including telling you when the cheaper option is the right one. Good advice before the sale is why customers come back.