Overview
Professional Plus is the fullest perpetual suite Microsoft ships, and the reason to choose it is almost always Access or Publisher. If you maintain an Access database that a department depends on, no subscription tier substitutes for it on the desktop.
Two caveats. It is Windows-only, and it is normally a volume-licensing edition rather than a retail box — which is exactly why cheap keys for it circulate online. Those are frequently misappropriated volume keys that deactivate later. Also note Publisher has been retired by Microsoft going forward, so plan for it rather than building new work on it.
Key specifications
- Licence type: Perpetual (one-time purchase)
- Apps included: Word, Excel, PowerPoint, Outlook, Access, Publisher
- Platform: Windows only
- Devices: 1 PC
- Distribution: Normally a volume-licensing edition
- Support: Mainstream support for Office 2021 ends October 2026
- Cloud storage: None bundled
- Note: Access and Publisher have no macOS equivalents
Microsoft changes what its plans include from time to time. Check the current comparison on microsoft.com before buying or renewing.
Features at a glance
- Word, Excel, PowerPoint and Outlook
- Access database included
- Publisher included
- One-time licence, no subscription
- Windows only — no Mac version of this edition
Who the Microsoft Office 2021 Professional Plus is for
Windows power users and offices that specifically need Access or Publisher alongside the standard Office apps, without a subscription.
Common problems and how to fix them
A cheap key activated, then stopped working weeks later
That is the signature of a misappropriated volume key being blocked. There is no repair for it beyond buying a legitimate licence. If a price looks impossible for Professional Plus, this is usually why — talk to us before you buy if you are unsure of a source.
Access will not open a database another user created
Check the file format and bitness. A 64-bit Access install cannot load some 32-bit ActiveX components used by older databases. Matching the bitness across everyone who shares the file avoids a whole category of these problems.
Activation asks for a KMS server
Volume editions expect a corporate activation host. On a standalone machine you need the MAK or retail path instead. If the installer only offers KMS, the media is the volume edition and you need the retail one.
Frequently asked questions
Does Office 2021 Professional Plus run on a Mac?
No. This edition is Windows-only, largely because Access and Publisher have no macOS versions.
How long is it supported?
Microsoft's mainstream support for Office 2021 runs to October 2026, after which it stops receiving updates.
Why is it sometimes so cheap online?
Because it is a volume-licensing edition and improperly resold keys are common. Those keys can be deactivated at any point.
Still stuck?
Our technicians work with Microsoft every day. Call +1-8887342713 any time, or send us the details and we will get back to you.