Support endedPC
Windows 7 Pro
€7.90
Windows 8.1 ProPerpetual licence · Older version
Product key•••••-•••••-•••••-•••••-•••••
- 25-character key
- Official Microsoft link
- Activation guide
- Invoice with VAT
Windows 8.1 Pro
Windows 8.1 Pro for software or hardware that requires it. Perpetual licence for one PC.
- For business software or older hardware
- Ideal for an offline computer
- Key and download link by email
Version and edition
€7.90
Key sent by email in under an hour, 7 days a week, once payment is confirmed.
Total: €7.90 incl. VAT
1 to 4 licences€7.90
5 to 9 licences · −5%€7.50
10 to 49 licences · −10%€7.11
- Activation guaranteed: key replaced or refunded
- Invoice with VAT, in your company’s name if needed
- A technician replies by email within 24 business hours
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Why still Windows 8.1?
Some business software, industrial machines or older games only run on this version.
- Best kept for a dedicated computer, ideally offline.
- No new security patches.
- A technician can advise you before you buy, if needed.
| Processor | 1 GHz or faster |
|---|---|
| Memory | 1 GB (32-bit) or 2 GB (64-bit) |
| Storage | 16 GB (32-bit) or 20 GB (64-bit) |
| Graphics card | DirectX 9 compatible |
Activate the key in four steps
Install Windows if needed
On a blank PC, use the official link in the email and an 8 GB USB stick.
Open Settings
Press Windows + I, then System › Activation.
Change the product key
Enter the 25 characters you received by email.
It’s activated
Windows checks the key online in a few seconds.
Is Windows 8.1 still safe?
Microsoft support ended on 10 January 2023. Preferably use it offline or for a specific purpose.
How many PCs can I activate?
One key activates a single PC.
What if activation fails?
Reply to the delivery email with a screenshot of the error message. A technician checks the key and sends you a replacement key or refunds you.
Reviews of Windows 8.1 Pro
–.–/5Verified reviews of this product will appear here after the first orders.
Verified customer reviewsPublished here after the first orders.