How to Install and Activate Microsoft Office 2024 on Multiple PCs — Complete UK Guide for 2025
You've bought your Office 2024 product key. Now what? Whether you're setting up one PC or kitting out an entire household, this step-by-step UK guide covers everything from download to activation — including what to do when things go wrong.
We've walked over 8,000 customers through this process at Softkeys.uk. Here's the definitive guide, updated for 2025.
Why trust Softkeys.uk? We're a UK-registered business with over 8,174 verified customer reviews averaging 4.28 stars. Every key comes with a lifetime warranty and instant digital delivery. No waiting, no discs, no nonsense.
Before You Start: What You Need
Gather these before beginning the installation:
- Your Office 2024 product key — a 25-character alphanumeric code (format: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX). If you purchased from Softkeys.uk, this was delivered instantly to your email.
- A Microsoft account — free to create at account.microsoft.com. You'll link your product key to this account.
- A stable internet connection — the installer downloads approximately 4GB. A 50Mbps connection will complete this in about 10 minutes.
- Windows 10 or Windows 11 — Office 2024 does not support Windows 7 or 8.1. Check your version by pressing Win + R, typing 'winver', and pressing Enter.
- At least 4GB of free storage — though 10GB+ is recommended to allow for updates.
Step 1: Uninstall Any Previous Office Versions
Running multiple Office versions simultaneously can cause conflicts. Before installing Office 2024, remove any existing installations:
- Open Settings (Win + I) → Apps → Installed apps
- Search for 'Microsoft Office' or 'Microsoft 365'
- Click the three dots next to any Office product and select Uninstall
- Follow the prompts to complete removal
- Restart your computer after uninstallation
If the standard uninstall doesn't work cleanly, Microsoft provides the Office Removal Tool (also called the Support and Recovery Assistant). Download it from Microsoft's support site to perform a thorough removal.
Step 2: Redeem Your Product Key
This is where you link your product key to your Microsoft account:
- Go to setup.office.com in any web browser
- Sign in with your Microsoft account (or create one if needed)
- Enter your 25-character product key exactly as provided — no spaces needed
- Select your country as United Kingdom and your language as English (United Kingdom)
- Click Next and confirm the product being redeemed
Once redeemed, Office 2024 is permanently linked to your Microsoft account. This means you can reinstall it later without needing the product key again — just sign in at office.com/myaccount.
Step 3: Download and Install Office 2024
After redeeming your key:
- You'll be redirected to your Microsoft account's Services & Subscriptions page
- Find Office 2024 in your products list and click Install
- The installer (OfficeSetup.exe) will download — it's a small file that handles the full download
- Run the installer and wait for the download and installation to complete
- You'll see a progress bar — don't restart your computer until it finishes
- Once complete, you'll see a confirmation message
The installation runs in the background, so you can continue using your computer while it downloads. Total time: 15-20 minutes on a standard UK broadband connection.
Step 4: Activate Office 2024
Open any Office application (Word, Excel, etc.) after installation:
- You may be prompted to sign in with your Microsoft account — use the account you redeemed the key with
- Office will activate automatically once it verifies your licence
- To confirm activation: open Word → File → Account — you should see 'Product Activated'
If activation doesn't happen automatically, go to File → Account → Activate Product and follow the prompts. In rare cases, you may need to enter the product key directly within the application.
Setting Up Office on Multiple PCs: Your Options
Here's where UK buyers need to understand their options clearly:
Option A: Separate Office 2024 Pro Plus keys (£29.99 each)
Each PC gets its own licence. Best for: families with 1-2 computers, or businesses that want individual licence management. Each key activates on one PC.
Option B: Office 365 Pro Plus Lifetime — 5 Devices (£19.99 total)
One purchase covers up to five PCs or Macs. Best for: families with multiple devices, small offices, or anyone wanting maximum value. At £19.99 total for 5 devices, this is £4 per device — frankly absurd value.
| Scenario | Best Option | Total Cost |
|---|---|---|
| 1 PC, need Access/Publisher | Office 2024 Pro Plus | £29.99 |
| 2 PCs, basic Office apps | Office 365 Pro Plus Lifetime (5 devices) | £19.99 |
| 3-5 PCs, family or small office | Office 365 Pro Plus Lifetime (5 devices) | £19.99 |
| 5+ PCs, business | Multiple Office 365 Lifetime keys | £19.99 per 5 devices |
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Troubleshooting Common Activation Issues
'This product key has already been used'
This error means the key has been redeemed to a different Microsoft account. If you purchased from Softkeys.uk, contact our support team immediately — we'll provide a replacement under our lifetime warranty. If you accidentally redeemed to the wrong account, you'll need to install from that account instead.
'We can't verify this product key'
Check that you've entered the key correctly — the letters O and 0, I and 1 are commonly confused. If the key is definitely correct, wait 24 hours and try again, as Microsoft's activation servers occasionally experience delays.
Office is stuck in 'Unlicensed Product' mode
Go to File → Account → Sign Out, then sign back in with the Microsoft account linked to your licence. If this persists, run the Microsoft Support and Recovery Assistant tool, which can diagnose and fix most activation issues automatically.
Installation fails midway
Disable your antivirus temporarily (Windows Defender can occasionally interfere), ensure you have a stable internet connection, and try running the installer as Administrator (right-click → Run as Administrator). If problems persist, use the Office Removal Tool to clean any partial installation, then start fresh.
After Installation: Essential First Steps
Once Office 2024 is installed and activated:
- Run Windows Update — this will download the latest Office patches and security updates
- Set your default file formats — go to File → Options → Save and choose your preferred formats (.docx, .xlsx, etc.)
- Configure AutoSave — if using OneDrive, enable AutoSave for automatic document backup
- Set your proofing language — go to File → Options → Language and ensure English (United Kingdom) is your primary editing language for correct UK spelling
- Customise the Quick Access Toolbar — add your most-used commands for faster workflow
Your UK Consumer Rights After Purchase
Remember: under the Consumer Rights Act 2015, your digital purchase must be of satisfactory quality, fit for purpose, and as described. If your product key doesn't activate or doesn't provide the software described, you have a statutory right to a replacement or refund.
Buying from a UK-registered seller like Softkeys.uk ensures these rights are fully enforceable. Our lifetime warranty goes beyond the statutory minimum, providing free replacement keys for the life of your licence.
Installation complete? Welcome to Office 2024. Time to get to work.
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Frequently Asked Questions
Can I install Office 2024 Pro Plus on more than one computer?
Do I need an internet connection to activate Office 2024?
What if my Office 2024 product key says it's already been used?
Can I transfer my Office 2024 licence to a new computer?
Is Office 2024 compatible with macOS?
How long does the installation process take?
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