Data loss is a nightmare we all want to avoid. Whether it’s a sudden hardware failure, a ransomware attack, or an accidental deletion, losing your precious photos and documents is devastating. That’s why a reliable backup solution is the most important software on your PC.
Today, you can get a genuine lifetime license for O&O DiskImage 21 Premium for absolutely free, courtesy of ComputerBild’s 2025 Advent calendar promotion. Normally retailing for around $49.95, this German-engineered software is one of the most trusted names in system recovery.

Contents
🌟 What is O&O DiskImage 21 Premium?
O&O DiskImage 21 Premium is a comprehensive backup suite designed specifically for home users who want professional-grade security without the complexity. It allows you to back up your entire computer, individual hard drives, or specific files with just a few clicks.
Unlike simple file copiers, this software creates complete “images” of your system. If your Windows crashes or your hard drive fails, you can restore everything—OS, settings, and files—exactly as it was.

🔥 Key Features
Here is why O&O DiskImage 21 is a must-have tool for your Windows 10 or 11 PC:
- Fortress Mode: A unique feature that runs the backup in a completely isolated environment, protecting the process from external tampering or malware.
- Whole System Backup: Create an image of your entire PC. If Windows won’t start, you can restore the image and be back up and running in minutes.
- Machine Independent Restore (M.I.R.): Restoring a backup to a new computer with different hardware? No problem. M.I.R. handles the driver conflicts for you.
- VHD/VHDX Support: Convert your backups into virtual hard drives. You can then mount them to access files or even run your old PC inside a virtual machine!
- Plug-and-Play Automation: Set it up once, and the software can autostart a backup whenever you plug in your designated external USB drive.
- SSD & UEFI Support: Fully optimized for modern hardware, including fast NVMe SSDs and the latest UEFI BIOS systems.

🎁 How to Get Your Free License
This giveaway is based on a special promotion from O&O Software. The registration page is in German, but the process is incredibly simple. Follow these steps:
- Visit the Promo Page: Go to the official O&O giveaway page here: https://www.oo-software.com/de/special/pdi912.
- Enter Your Email: Look for the text box labeled “Ihre E-Mail-Adresse”. Enter your valid email address there.
- Request the Key: Click the button labeled “Kostenlose Lizenz anfordern” (Request Free License).
- Confirm Your Email: You will receive an email from O&O Software. Click the confirmation link inside that email (usually labeled “Klicken Sie hier, um Ihre Registrierung abzuschließen”).
- Receive Your Code: After confirming, a second email will arrive containing your Serial Number (Ihre kostenlose Lizenz). Keep this safe!
📝 Note: If you don’t see the email, please check your spam or junk folder. The email typically arrives within a few minutes; however, due to high demand, it may take up to 10 minutes to receive the confirmation email.
📥 Installation & Activation
- Download the installer for O&O DiskImage 21 Premium. You can find the English version on the official website or use these direct links:
- Download 64-bit Installer
- Note: The giveaway usually works with the standard installer, often labeled as Professional/Premium.
- Run the installer and follow the on-screen instructions. Complete the installation process/
- On the first launch, a registration window will appear (as shown below screenshot).
- Input the Serial Number you received, click “OK” and enter your email address
- Click “Register: and activate the full version!

🏁 Conclusion
Don’t wait for a disaster to think about backups. O&O DiskImage 21 Premium offers a “set it and forget it” peace of mind that is invaluable. Grab this free license while the promotion is live and ensure your digital life is secure!

Discover more from Techno360
Subscribe to get the latest posts sent to your email.
