Stripe-secured checkout · 3-D Secure EU VAT invoice · reverse-charge for B2B Activate from any of 27 EU states 14-day refund · no fees, no questions
About this licence
Microsoft Windows 8.1 Pro — The Bridge Between Classic and Modern Windows
Windows 8.1 Pro refined the Windows 8 experience with the Start button return, improved multitasking, and better desktop integration. A solid choice for systems that need modern security with touch-friendly capabilities.
What You Get
Restored Start Button — familiar navigation with modern live tile integration
Enhanced Multitasking — snap up to 4 apps on screen simultaneously
Domain Join & Group Policy — enterprise management for business network environments
BitLocker Encryption — full-disk encryption to protect business and personal data
Windows To Go — boot your entire Windows environment from a USB drive
Hyper-V Virtualization — run virtual machines natively without third-party software
Why Choose Windows 8.1 Pro?
Windows 8.1 Pro occupies a unique sweet spot — modern enough for current security standards, lightweight enough for older hardware, and compatible with software that doesn't support Windows 10/11. Its touch-optimized interface makes it ideal for tablets and 2-in-1 devices from the Windows 8 era.
Perfect For
Older Hardware that runs best on a lighter, optimized operating system
Touch Devices from the Windows 8 era (Surface Pro 1/2/3, Dell Venue, etc.)
Business Environments requiring specific Windows 8.1 software compatibility
Development & Testing where Windows 8.1 compatibility verification is needed
How It Works
Purchase — complete checkout and receive your product key instantly via email
Download — get the official ISO from your account dashboard
Install — boot from USB/DVD and complete the setup wizard
Activate — enter your key for permanent activation
Our Guarantee — 100% genuine Microsoft license, instant digital delivery, and dedicated support if you need help with activation. Your license is permanent with no recurring fees.
What you get
Retail-type licence key (see product page for licence type)
What are the system requirements for Microsoft Windows 8.1 Pro?
Microsoft Windows 8.1 Pro requires Windows 10/11, at least 4 GB of RAM (though 8 GB is recommended), and 2 GB of free storage space. An internet connection is needed for download and activation.
What kind of license do I get with Microsoft Windows 8.1 Pro from Lizensa?
Your Microsoft Windows 8.1 Pro license is a perpetual (lifetime) license — buy once and use forever on one device. This means no recurring fees or subscriptions. You'll also receive free updates and security patches from Lizensa.
What's included with my Microsoft Windows 8.1 Pro purchase from Lizensa?
Your purchase includes a genuine Microsoft Windows 8.1 Pro license key, a download link from the official Microsoft website, step-by-step activation instructions, a VAT invoice (EU), and lifetime access to the key in your Lizensa account. All keys are authentic and backed by our 14-day money-back guarantee.
Why is Microsoft Windows 8.1 Pro so much cheaper on Lizensa?
At just €12.99, our Microsoft Windows 8.1 Pro license is up to 86% cheaper than retail because we buy in wholesale volume from European distribution channels and pass the savings directly to you. You get the exact same genuine product — just without the retail markup.
How do I install and activate Microsoft Windows 8.1 Pro from Lizensa?
After purchase, you'll receive a download link and license key by email. Download the software from the official Microsoft website, enter your key during installation or in the activation menu, and follow the guided setup. Full instructions are included with your purchase.
Is Microsoft Windows 8.1 Pro compatible with my operating system?
Microsoft Windows 8.1 Pro is compatible with current versions of Windows and macOS. Please check the system requirements section on this page before purchasing. Most modern PCs and Macs meet or exceed the minimum requirements.
How quickly will I receive my license key from Lizensa?
Your license key is delivered instantly via email after payment is confirmed — typically within 30 seconds. You'll also find it in your Lizensa account dashboard under My Library.
Are Lizensa license keys genuine and legal in the EU?
Yes. Our licenses are sourced through European distribution channels and come with a VAT invoice. The EU Court of Justice (UsedSoft v Oracle, C-128/11) has confirmed that software license resale is legal within the European Economic Area.
What is Lizensa's refund policy?
We offer a 14-day money-back guarantee on all licenses. If you encounter any issues with activation or the product doesn't meet your needs, contact our support team for a full refund — no questions asked.
productDetail.faq.activation.question
After purchase, you'll receive an email with your license key and step-by-step activation instructions. Simply enter the key during installation or in your system's activation settings. Most activations take under 2 minutes.
Do I get support with my Lizensa purchase?
Absolutely. Our multilingual support team responds within one hour during business hours. We can assist with installation, activation troubleshooting, and license questions via email in English, German, French, Spanish, Italian, Dutch, and Polish.
Is this licence lawfully resold in the EU?
Yes. Sourced through authorized European distribution channels. Every key is genuine and resaleable under EU “exhaustion of rights” (CJEU C-128/11).
How fast does the key arrive?
Average delivery is 43 seconds. We commit to under 60 seconds. If we miss that, you get a free replacement.
Can I get a refund if it doesn’t work for me?
Yes. EU consumer law gives you 14 days to return any unused key — no fees, no questions. Honoured without friction.
Do you provide a VAT invoice for B2B?
Yes. EU-compliant invoice with every order, downloadable from your dashboard. Valid VAT number triggers automatic reverse-charge.
What languages is the activation guide in?
EN, DE, FR, ES, NL, PL, IT, PT — matched automatically to your account locale.
What if I have trouble activating?
Email or chat support replies in your language within an hour during EU business hours. We’ll walk you through it or replace the key.
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