Microsoft Office 2021 Professional Plus LTSC – Product Key

Microsoft Office 2021 Professional Plus LTSC is the Long-Term Servicing Channel edition of the suite, meant for workstations that need to stay the same over time: company PCs, production machines and environments with little or no connectivity. Unlike Microsoft 365, it receives security fixes only and no stream of new features, so the interface does not change unexpectedly.

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.

Activation

Install the LTSC 2021 version of Office, open any application, go to File › Account › Change Product Key and enter the key. Activation takes place online; for an isolated machine, telephone activation remains available.

System requirements

• Windows 11 or Windows 10
• 64-bit processor at 1.6 GHz or faster
• 4 GB of RAM and 4 GB of disk space
• 1280 x 768 display
• Internet connection for the initial activation

Odin Key sends the key by e-mail within 24 hours of payment, together with the activation steps. An official invoice is included, and support is available in English by e-mail and live chat.