Microsoft Office 2021 Professional Plus LTSC is the Long-Term Servicing Channel edition of the suite. It is aimed at workstations that must stay stable over the years: company PCs, production machines and environments with limited connectivity. Unlike Microsoft 365, it receives security fixes only and no flow of new features, so the interface does not change under your feet.
Applications in the suite
- Word 2021: writing, mail merge, collaborative review and built-in PDF export.
- Excel 2021: PivotTables, Power Query, XLOOKUP, LET and dynamic arrays.
- PowerPoint 2021: Morph, Slide Zoom and automatic captions while presenting.
- Outlook 2021: business e-mail, rules, shared calendars and Exchange support.
- Access 2021: local relational databases, forms and queries.
- Publisher 2021: brochures, flyers and business cards.
- OneNote: a notebook organised into sections and pages.
Before you order
- This is the LTSC version: install the LTSC build of Office 2021, not a Microsoft 365 installer.
- Works on Windows 11 and Windows 10.
- Hardware: a 64-bit processor at 1.6 GHz or faster, 4 GB of RAM, 4 GB of free disk space and a 1280 x 768 display.
- Updates are limited to security fixes; no new features are added.
- Please check Microsoft's published support dates for Office 2021 LTSC to make sure it fits your plans.
Activation and delivery
The key is sent by e-mail within 24 hours of payment, with an invoice and the activation steps. Install the LTSC 2021 version, open any of the applications, go to File › Account › Change Product Key and enter the key. Activation takes place online and needs an Internet connection once; for a machine that stays isolated, telephone activation remains possible. Delivery is digital only, and our team answers questions by e-mail.
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