A
Avast
Avast Ultimate
25,90 €29,90 €
−13%Loading product
Loading product
Bitdefender
Genuine 1-year Bitdefender Internet Security for 1 Windows PC. Instant EU digital delivery with full support.
Genuine 1-year Bitdefender Internet Security for 1 Windows PC. Instant EU digital delivery with full support.
Share how compatibility, activation and digital delivery worked for you. Reviews from verified buyers help other customers choose with confidence.
Our support team is here for you.
Loyalty points are added to your account and can be redeemed for discounts.
Earn 12% commission on every referral. Join our partner program.
Join nowIn an era where digital threats evolve by the minute, relying on basic, built-in security is a gamble you cannot afford. Bitdefender Internet Security for 1 device provides a comprehensive, multi-layered defence system that goes far beyond simple antivirus. This is not just a piece of software; it is a 1-year digital shield for your Windows PC, designed to protect your finances, your identity, and your personal files from the entire spectrum of online threats. From ransomware that could lock you out of precious family photos to sophisticated phishing scams designed to steal your banking credentials, this solution offers absolute peace of mind.
This 1-year digital license is ideal for home users who demand the best protection for their primary computer, freelancers managing sensitive client data, or small business owners who need a robust, compliance-ready security solution for a single workstation. The core benefit is autonomy: a powerful, intelligent security suite that works silently in the background, blocking threats in real-time without slowing down your system. With Lizensa, you receive a genuine, EU-compliant license delivered instantly, backed by professional support and a clear VAT invoice, making it a perfect choice for both private and professional use.
When you purchase this product from Lizensa, you are acquiring a genuine, 1-year subscription license for Bitdefender Internet Security, covering exactly 1 Windows device. This is a digital delivery item; no physical box or USB stick will be shipped. Within minutes of completing your order, you will receive an email containing your unique activation code and a direct link to the official Bitdefender download portal. Your purchase also includes a full EU-compliant VAT invoice, suitable for business accounting and tax purposes.
This is a term-based subscription license, valid for 365 days from the date of activation. It is not a lifetime or perpetual license. Activation is straightforward: download the installer, run it, and enter the provided code when prompted. The license is tied to your Bitdefender Central account, which allows you to manage your subscription, monitor your device's security status remotely, and download the software again if needed. The software interface and support are available in multiple languages, including English, German, French, Dutch, and Polish.
This license secures a single Windows PC for a full year, providing an essential layer of digital armour that free or built-in alternatives simply cannot match. While Microsoft Defender has improved, it lacks the dedicated anti-fraud, ransomware remediation, and network intrusion detection layers that define a premium internet security suite. With Bitdefender, you are not just getting a virus scanner; you are getting a complete ecosystem designed to protect your digital identity.
Bitdefender Internet Security is engineered for the Windows platform, supporting both 32-bit and 64-bit architectures where the specific product edition allows. To ensure a smooth and responsive experience, your system should meet the following minimum specifications. For optimal performance, especially during full system scans, the recommended specifications are advised.
Note: Exact system requirements can vary slightly between product versions. We strongly recommend validating these specifications against the official Bitdefender documentation for your specific Windows build before activating your product.
Getting started with your new security suite is a rapid, three-step process designed for immediate protection. The moment your payment is processed by our secure system, Lizensa initiates the digital delivery of your license.
Should you need to reinstall Windows or move the license to a new PC, you can do so by uninstalling the software from the old machine and installing it on the new one using the same activation code, managed through your Bitdefender Central account. If you encounter any activation errors, Lizensa's free multilingual technical support team is ready to assist you.
Choosing where to buy your software license is as crucial as choosing the software itself. At Lizensa, we have built our reputation on being a trusted, transparent, and customer-first European retailer. When you purchase your Bitdefender Internet Security license from us, you are not just buying a key; you are investing in a relationship backed by concrete guarantees. Our entire process is built for speed and security. The average delivery time for a digital license is under 60 seconds, meaning you can go from purchase to protected in minutes. We process payments exclusively through Stripe, a global leader in secure online transactions, allowing you to pay with confidence using SEPA, iDEAL, BLIK, Google Pay, and major credit cards.
Every license we sell is 100% genuine and sourced directly from authorised European distribution channels. This guarantees that your software is legitimate, fully functional, and compliant with all EU regulations. As a European customer, you are protected by the full weight of EU consumer law, including a 14-day right of withdrawal. We provide a full, compliant VAT invoice with every purchase, which is essential for business accounting and enables the reverse-charge mechanism for eligible B2B cross-border transactions within the EU. Our commitment to you extends beyond the sale. If you face any technical hurdle during installation or activation, our free, multilingual support team is here to help, ensuring your license works perfectly across all 27 EU member states.
This is a 1-year subscription license. Your protection is active for 365 days from the date of activation. To continue using the software and receiving security updates after the first year, you will need to purchase a renewal.
Digital delivery is virtually instant. Our system is automated to send your activation code and download instructions to your email address and Lizensa customer account within an average of 60 seconds after payment confirmation.
Absolutely. Lizensa supplies only 100% genuine licenses sourced from authorised European distributors. This license is fully legal for activation and use in all 27 EU member states and comes with a VAT invoice for your records.
We provide free multilingual technical support. If you encounter an error during activation, simply contact our support team with your order details, and we will guide you through the process to ensure your software is up and running.
Yes. The license is managed through your Bitdefender Central account. If you get a new PC or need to reinstall Windows, simply uninstall the software from the old device and install it on the new one using your existing activation code.
No, this specific license is for 1 Windows device. Bitdefender Internet Security is a Windows-based product. For cross-platform protection, you would need a product like Bitdefender Total Security, which covers multiple operating systems.
Our Stripe-secured checkout accepts a wide range of payment methods, including major credit cards, SEPA bank transfers, iDEAL, BLIK, and Google Pay, ensuring a secure and convenient transaction.
Yes, a full EU-compliant VAT invoice is provided with every purchase. For B2B customers with a valid VAT ID, the reverse-charge mechanism can be applied, making it simple for business accounting and compliance.
As an EU-based retailer, we adhere to EU consumer protection laws, which grant you a 14-day right of withdrawal on your purchase. Please refer to our terms and conditions for full details on how to exercise this right.
While Windows Defender provides basic antivirus protection, Bitdefender Internet Security adds multiple critical layers including a dedicated firewall, anti-ransomware remediation, a secure browser for banking, webcam protection, and a Wi-Fi security advisor. It offers a far more comprehensive defence against modern threats.
An internet connection is required for initial activation and to receive real-time threat intelligence and product updates. While core on-access scanning works offline, full protection relies on cloud connectivity to detect the very latest threats.
Bitdefender Internet Security provides premium protection for Windows PCs, focusing on online threats, ransomware, and privacy. Bitdefender Total Security extends this same level of protection to multiple platforms, including macOS, Android, and iOS, and often includes system optimisation tools.
