You redeemed a brand-new Office key, but Word or Excel already opened on the computer before you typed a single character of it. It’s a common mix-up: a Microsoft 365 trial on a new computer arrives pre-installed, and a purchased key on top of it can look like a conflict even when it isn’t. Here’s what that pre-installed software is, and how to make sure the license you paid for is the one running.
Key Takeaways:
- New Windows PCs commonly ship with a free 1-month Microsoft 365 trial pre-installed, separate from any Office key redeemed later.
- Microsoft’s built-in “Switch License” (File > Account) lets you pick which license is active, with no reinstall needed.
- A perpetual Office, Project, or Visio key is tied to your Microsoft account and typically appears on the same “Services & subscriptions” page as any subscription — not a hidden charge.
- A one-time Office license never expires; only Microsoft’s security-update window ends — October 13, 2026 for Office 2021, October 2029 for Office 2024.
Why Does a New PC Already Have Microsoft 365 or a Trial Installed?
Many new Windows PCs and laptops ship with a free one-month Microsoft 365 Family trial, set up during the PC’s first-boot screens. Microsoft’s own support page confirms it plainly.
It’s easy to miss — Word and Excel just open and work from day one, so it’s natural to assume Office “came with” the computer. Microsoft’s setup page states it directly: “Office is included as a 1-month free trial of Microsoft 365 Family with your new PC.” It’s Microsoft’s on-ramp toward a paid subscription — a different model from the one-time-purchase licenses TSC sells. See our Microsoft 365 vs. one-time purchase guide for the cost difference.
Can You Have Two Versions of Office Installed on the Same PC at Once?
Not really. Microsoft’s own documentation confirms Click-to-Run and Windows Installer (MSI) editions of Office can’t run on the same computer — one has to go before the other installs cleanly.
In practice, most new-PC trials and current retail keys (2021, 2024) both install through Click-to-Run, so a hard install clash is rare. More often it’s an activation mix-up: your new key doesn’t take over while the trial account is still signed in, and Office can show an “invalid product key” message until that’s resolved. It looks like “two versions of Office,” but it’s usually one installation with the wrong license attached. See our guide to Microsoft Office Click-to-Run for the fuller picture.
How Do You Switch Which License Is Active on Your PC?
Before uninstalling anything, try Office’s built-in Switch License option — it can hand control to your new key in a couple of minutes.
- Open any Office app, select File, then Account.
- Under Product Information, select Switch License.
- Sign in with the Microsoft account holding the license you want active — the one used at setup.office.com.
- Choose your purchased license, then close and reopen your Office apps.
Microsoft’s own guidance is direct about the fallback: if Switch License doesn’t stick, sign out, uninstall Office completely, and reinstall signed into the right account. It doesn’t apply to volume-license editions.
How Do You Remove the Microsoft 365 Trial Before Activating Your New Key?
If Switch License doesn’t stick, uninstall the trial first, then redeem your key fresh.
- Close every Office app, including background Teams or OneDrive sync.
- Press Windows key + I, go to Apps > Installed apps (Windows 10: Apps & features).
- Search “Microsoft 365” or “Office,” open its menu, and choose Uninstall.
- Restart your PC, then follow our step-by-step activation guide to redeem your key.
If it won’t uninstall cleanly, our Office removal tool guide covers Microsoft’s official troubleshooter for stuck installs.
What’s Already on a New PC, and What Should You Do With It?
Most of what you’ll see falls into a trial, a licensing option, or an unrelated nag. Here’s how to tell them apart.
| What You See | What It Is | What To Do |
|---|---|---|
| Word/Excel/PowerPoint already open, or an app called “Office”/”Microsoft 365” | Free 1-month Microsoft 365 trial from the manufacturer | Ignore while activating your key; uninstall once active |
| “Switch License” under File > Account | Built-in way to change licenses, no reinstall | Select your purchased license |
| Key listed on “Services & subscriptions” with a Microsoft 365 entry | Microsoft’s shared page for every license type | Check product name and price — no recurring charge on a one-time key |
| “Renew” or “reactivate” pop-up after activation | Leftover trial (Microsoft 365 or antivirus) | Confirm the program name, then uninstall or ignore |
| McAfee/Norton “protection expired” banner | Separate antivirus trial, unrelated to Office | Uninstall, or let Defender take over |
Why Does a Project or Visio Key Look Like a Microsoft 365 Subscription?
Because Microsoft manages it through the same account system. Perpetual Project and Visio keys redeem at setup.office.com and tie to your Microsoft account, typically showing up on account.microsoft.com’s Services & subscriptions page alongside any Microsoft 365 subscription.
That naturally raises the question of whether you signed up for something ongoing. You didn’t — Microsoft just manages one-time purchases and subscriptions through a single account view. Check the product name and price next to the entry: a perpetual license shows what you bought, once, with no recurring charge.
Why Does Something Keep Asking Me to Renew After I Bought a One-Time License?
Because the notice belongs to something else on the PC. A one-time Office purchase has no renewal date, so any “renew” prompt comes from a different program.
The usual sources are an expired Microsoft 365 trial, an antivirus trial (McAfee and Norton are common), or a Microsoft promotional notice — an ad, not a bill. The program name on the notice tells you whose message it is. For the full real-vs-scam-vs-trial breakdown, see our guide to expiring-Office messages.
Frequently Asked Questions
Do I need to remove the Microsoft 365 trial before installing my Office key?
Not always — try File > Account > Switch License first. If your key won’t take, uninstall the trial and redeem your key fresh.
Will uninstalling the trial delete my documents or files?
No. Uninstalling Office removes only the program; your saved files stay exactly where they were.
How do I know which Office license is actually active on my PC?
Open any Office app, go to File > Account, and check the name under “Product Information” — it should match the account you redeemed your key under.
Why does my Project or Visio key show up next to a Microsoft 365 entry on my account?
Microsoft ties both one-time purchases and subscriptions to your account, and they typically appear together on the “Services & subscriptions” page. Check the price — a one-time key has no recurring charge.
Does my new perpetual Office license expire the way the trial did?
No. A one-time Office 2021 or 2024 license keeps working indefinitely — only Microsoft’s security-update window ends (October 13, 2026 for 2021; October 2029 for 2024).
Almost There: Make Sure Your New License Is the One Running
Sorting out which license is active is usually a five-minute fix, not a sign anything went wrong with your purchase — and if you get stuck, our team is reachable by live chat or email. If you’re setting up a new PC and haven’t redeemed a key yet, it’s worth starting clean with a license that never had a trial attached: Office Home 2024 for PC is a one-time purchase at $139.99, delivered by email within 15–45 minutes and backed by a 180-day replacement warranty, from a listed Microsoft Partner.
