Instant delivery—— verified reviews
Genuine Windows 8.1 Pro key with BitLocker, Hyper-V, domain join and instant email delivery.
Lowest price in the last 30 days: $35.90 (on 3/6/2026)
Licence key + activation guide for your OS language. PDF VAT invoice attached.
Every key is checked against the publisher’s activation servers before we send it.
Unused keys can be returned within 14 days under EU consumer law (Directive 2011/83/EU).
Microsoft Windows 8.1 Pro is a practical choice for PCs that need the Windows 8.1 environment, including older hardware, touch devices from the Windows 8 era, and systems running software that was built or tested for this version. It keeps the familiar desktop close at hand while adding the Start screen, live tiles and improved app snapping for a more flexible setup.
With the Pro edition, you get the features needed for more advanced home, work and testing use. That includes domain join and Group Policy support for managed networks, BitLocker full-disk encryption, Hyper-V for running virtual machines, and Windows To Go for booting a Windows workspace from a USB drive. It is also suitable for compatibility testing where Windows 8.1 behaviour needs to be checked directly rather than assumed.
After checkout, Lizensa sends your Windows 8.1 Pro product key by email, with digital delivery averaging around 43 seconds. You can download the official installation ISO from your lizensa.com account, create a USB or DVD installer, install Windows, and activate it using the supplied key. The licence is permanent, with no subscription or recurring payment.
Lizensa supplies genuine Microsoft software through authorised European distribution channels. For EU buyers, the order includes clear consumer protections: a 14-day refund period under EU consumer law, GDPR-compliant handling of your data, and an EU VAT invoice for your records. Resale of software licences in the EU is legally supported under the exhaustion of rights principle confirmed by the Court of Justice of the European Union in case C-128/11.
Stripe / SEPA / iDEAL / Bancontact — every major EU payment method accepted.
We check your licence against the publisher’s activation servers in real time.
Licence + activation guide arrive in under 60 seconds. Average 43 seconds.
Follow the guide in your language. Done in under 2 minutes.
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