Microsoft Office 2021 Pro Plus — Online (5 PCs)

Buy a genuine Microsoft Office 2021 Pro Plus key — covers 5 PCs, instant email delivery, lifetime use. Warranty-backed, from $18.99.

About Microsoft Office 2021 Pro Plus — Online (5 PCs)

Office 2021 Professional Plus, online activation covering up to 5 PCs. Word, Excel, PowerPoint, Outlook, Access and Publisher. Lifetime use.

Key features

• Genuine Microsoft Office license — activates directly with the publisher, never a crack or "activator" tool
• Pro Plus edition
• Runs on Windows
• Licensed for 5 devices
• Delivered by email within seconds of payment
• Free replacement if a key ever fails to activate

What's included

• 1 genuine license key, emailed instantly after payment
• Retail license type
• Step-by-step activation instructions
• Free replacement if the key is ever faulty
• Access to your key anytime from your account dashboard

License information

Requires Windows. Check your device runs Windows before purchasing — keys can't be reissued once revealed.

• License type: Retail
• Edition: Pro Plus
• Devices: 5
• Platform: Windows

Delivery process

1. Pay securely by card via Stripe checkout.
2. Your license key is assigned automatically the moment payment clears.
3. The key is emailed to you within seconds, and saved to your account dashboard.
4. Guests confirm their email with a one-time code before the key is released, to make sure it reaches the right inbox.

Why buy from Software Keys HQ

Genuine keys only

Every key is sourced through legitimate distribution channels and activates directly with the publisher — never a crack, loader, or "activator" tool.

Instant delivery

Keys are emailed within seconds of payment, 24/7 — no waiting on a human to fulfill your order.

Replacement warranty

If a key ever fails to activate, email support@softwarekeyshq.com with your order number for a free replacement.

Secure checkout

Payments are processed by Stripe — we never see or store your card details.

Good to know

Is this Microsoft Office 2021 Pro Plus — Online (5 PCs) genuine?

Yes — every Software Keys HQ key is genuine and activates directly with the publisher. We never sell cracks or "activator" tools.

How fast will I receive my key?

Instantly — your key is emailed within seconds of payment and saved in your account dashboard.

How do I activate Microsoft Office 2021 Pro Plus — Online (5 PCs)?

Download Office from microsoft.com (or setup.office.com), install it, then sign in and enter your product key when asked to activate. Your key is also saved in your dashboard.

What if the key doesn't activate?

First make sure it's entered on the correct platform and edition. If it still fails, email support@softwarekeyshq.com with your order number — every key is warranty-backed and faulty keys are replaced free of charge.

How can I pay?

Pay securely by credit or debit card, processed via Stripe at checkout.

Why is it cheaper than retail?

We source genuine keys through legitimate volume and regional distribution channels and pass the saving on — the same publisher-issued key, without the retail markup.