Microsoft Office 2021 Professional Plus LTSC – Lifetime Licence 1 PC · Digital Product Key

Buy Office 2021 Professional Plus LTSC with a genuine lifetime licence for 1 PC: Microsoft’s complete suite with Word, Excel, PowerPoint, Outlook, OneNote, Access and Publisher in their 2021 editions. Product key by email within minutes and official download from Microsoft’s servers.

This is the LTSC (Long-Term Servicing Channel) edition, the volume-licence version of Office 2021 designed for businesses and offices, with the same desktop apps.

It’s the most complete edition of Office 2021, designed for professionals and businesses: XLOOKUP and dynamic arrays in Excel, presentation recording in PowerPoint, dark theme and new accessibility features across all the apps. No subscription: you pay just once. Step-by-step guide and free support included.

Applications included in Office 2021 Professional Plus LTSC

• Word 2021
• Excel 2021
• PowerPoint 2021
• Outlook 2021
• OneNote
• Access 2021
• Publisher 2021
• Skype for Business

What you get with Office 2021 Professional Plus LTSC

• Genuine product key to activate Office 2021 Professional Plus LTSC on 1 PC
• Official download link for the software from Microsoft’s servers (no physical media, no waiting)
• Installation and activation guide, step by step
• Delivered by email within minutes of payment confirmation
• Invoice and free support before and after your purchase

Key features of Office 2021 Professional Plus LTSC

• Excel 2021: XLOOKUP, dynamic arrays, the LET function and new Sheet Views
• PowerPoint 2021: presentation recording, ink replay and new animations
• Outlook 2021: instant search and built-in translation
• Word 2021: Line Focus, dark theme and co-authoring on OneDrive files
• Access and Publisher 2021 for databases and professional desktop publishing
• Perpetual licence: keeps working even after Microsoft support ends (13 October 2026)
• Perpetual licence: no subscription, no renewals

System requirements

• Operating system: Windows 10 or Windows 11 (also Windows Server 2019/2022)
• Processor: 1.6 GHz or faster, dual-core
• RAM: 4 GB (64-bit) or 2 GB (32-bit)
• Disk space: 4 GB available
• Display: 1280 × 768 resolution or higher; DirectX 9 graphics card with WDDM 2.0 driver or later
• Internet connection for download and activation

Activation in 3 easy steps

1. Download Office 2021 Professional Plus LTSC from the official link in your email and start the installation.
2. Open an application (Word, for example) and enter the product key in the activation window.
3. Confirm: activation happens online in a few seconds and the suite is ready to use.

Office 2021 Professional Plus LTSC: frequently asked questions

Is the licence genuine and lifetime?

Yes. You receive a genuine Microsoft product key for Office 2021 Professional Plus LTSC, purchased from authorised software distributors. Perpetual licence: no subscription, no fees, no expiry date.

How many PCs can I install Office 2021 Professional Plus LTSC on?

The licence is valid for 1 PC. If you ever need to move it to a new computer, get in touch with us before you do: we’ll explain the correct procedure for your type of licence.

Is it compatible with Windows 11?

Yes, it’s fully compatible with Windows 10 and Windows 11 (32-bit and 64-bit). It can’t be installed on a Mac: for macOS, choose one of the Office for Mac versions available in our store.

Will I receive Microsoft updates?

Microsoft support for Office LTSC 2021 ended on 13 October 2026. The suite keeps working and activating normally, with no expiry, but no longer receives security patches. If you want updates until 2029, choose Office 2024.

What’s the difference from Microsoft 365?

Microsoft 365 is a subscription with a monthly or annual fee; this is a perpetual licence: you pay just once and use the applications forever, with no renewals. It doesn’t include the extra OneDrive storage or the cloud features reserved for subscribers, but for most users it’s the most cost-effective choice in the long run.

Which language does it install in?

The licence is multilingual: you can install Office in English or any other language supported by Microsoft.

How and when do I receive the licence?

By email, within minutes of payment confirmation (in rare cases, due to anti-fraud checks, within 24 hours). No physical media: you receive the product key, the official download link and the step-by-step guide.

CD Keys Deal warranty and support

We buy our licences from authorised software distributors and keep the documentation for every supply. If the key doesn’t work on your first activation attempt, we’ll replace it or refund you, as set out in our Warranty Policy. Our team replies by email in under an hour on average and guides you step by step, from installation to activation. Secure payments, invoice included, instant digital delivery: no parcel to wait for.