Office 2021 End of Life: What It Means and What to Do
If you bought Office 2021 as a one-time purchase, Microsoft stopped supporting it on October 13, 2026. That date has now passed. Your copy of Word, Excel or Outlook probably opened this morning just as it did last week, which makes it easy to ignore. It is still worth a few minutes of attention.
This post covers what Microsoft has said, what changes in practice, how to check which version you have, and the choices for moving on.
What Microsoft has announced
Microsoft’s support page for Office 2021 says support ended on October 13, 2026, and that there is no extension and no extended security updates. After that date Microsoft does not provide:
- technical support, including phone and chat help
- bug fixes
- security fixes for newly discovered vulnerabilities
- software updates for Office 2021
Microsoft says your Office 2021 apps may continue to function, but warns that this can expose you to serious security risks. Microsoft’s lifecycle page lists the retail editions (Home and Business, Home and Student, Professional, including the Mac versions). The business volume version, Office LTSC 2021, is also affected by the same date.
What this means day to day
Nothing breaks overnight. Word still opens, Excel still calculates and your files are still where you left them. The change is slower than that.
Every month, security researchers find new weaknesses in Office and in the files it opens. A supported version gets a fix. An unsupported one does not, so each new weakness stays open on your computer for good. Attackers like Office files because people open them all the time: invoices, resumes, quotes, shared spreadsheets. An email attachment is the usual way in.
For a home computer used for letters and a family budget spreadsheet, the risk is lower than for an office that handles client information. For any computer that receives email attachments or holds other people’s personal details, we would not wait long.
Step 1: Find out which version you have
Many people do not know what they own. To check:
- Open Word, Excel or Outlook.
- Click File, then Account (in Outlook it may say Office Account).
- Look under Product Information.
If it says “Office Home & Student 2021,” “Office Home & Business 2021,” “Office Professional 2021” or “Office LTSC 2021,” this post applies to you. If it says Microsoft 365 (or “Microsoft 365 Apps for business”), you have a subscription and Microsoft keeps it updated, so there is nothing to do about this date.
On a Mac, open any Office app, click the app name in the menu bar (for example Word), then About Word.
An office with several computers often has a mix. One machine might have Microsoft 365, another Office 2021 bought with a laptop, and another an older version still. Check each one.
Step 2: Back up before you change anything
Whatever you pick next, copy your documents first. Save a copy of your Documents, Desktop and any folders where Office files live to an external drive or to OneDrive. Outlook users should also confirm where their email is stored. Email in a Microsoft 365 or Gmail account lives online, but older POP accounts can keep mail only on that computer.
Our data recovery and backup service can set up automatic backups so this is not a one-time scramble. If you ever lose a file along the way, our post on recovering deleted files walks through what to try.
Step 3: Choose your next step
You have a few reasonable routes. Which one fits depends on how many people use Office and how they use it.
Move to Microsoft 365. This is a subscription that includes the desktop apps, OneDrive storage and ongoing updates. Microsoft’s support page points home users here. It tends to suit offices, families who share one plan, and anyone who wants Office on a phone and tablet as well. Check the current price on Microsoft’s website for your plan before you decide.
Buy a newer one-time version of Office. Microsoft has sold a later perpetual version, Office 2024, for people who do not want a subscription. You pay once and get the apps without the cloud extras. Check the current price and exactly which apps are included before you buy.
Use free web versions or another office suite. Word, Excel and PowerPoint in a web browser are free with a Microsoft account, with fewer features. LibreOffice is a free desktop suite that opens Office files. These suit someone who writes a few letters a month. Complex spreadsheets with macros, or documents that must look identical in Word, can behave differently, so test your important files first.
Keep Office 2021 for now. This is the riskiest choice, but some people decide to wait until a computer is replaced. If that is you, keep Windows and your antivirus fully updated, do not open attachments you were not expecting, and avoid using Office 2021 on any computer that holds client or financial records.
Moving your setup without losing things
The part people dread is the move itself. A few things catch people out:
- Uninstalling the old version before the new one is ready can leave you with no Office at all for a day.
- Outlook profiles, signatures and saved autocomplete names do not always carry over.
- Add-ins and macros built for the old version may need to be checked.
- A licence tied to one Microsoft account can be hard to track down if the person who bought it has left.
Do it on a quiet afternoon rather than the morning of a deadline, and keep the old installation until you have confirmed the new one opens your key files.
When to call a technician
Call someone if:
- you have several computers with different Office versions and are not sure which need attention
- Outlook holds years of email and you do not want to risk it during the move
- the office uses shared mailboxes, a custom email setup or macros in Excel
- an installation fails, asks for a licence you cannot find, or leaves two versions of Office fighting each other
- you would like someone to compare the subscription and one-time options against how you use Office
Our home tech support service covers moves like this for households, and our small business IT support service handles the office version. We work across Victoria, Saanich and Langford, on site or by remote session, at $150 an hour. We explain what we plan to do before we start, and you approve it.