Once installed for  trial purposes you can easily upgrade to a full featured version. The full version includes
- Stealth mode: HDGUARD can be hidden until it is completely transparent (so invisible) to the end user.
- Password protection: Independently of the administration password your administator's acount has, HDGUARD supports an own password. Only you can run the HDGUARD user interface and change or disable protection.
All you have to do is to enter your personal license key, which we'll provide after receiving your order.
Here you can have a look at the latest price scales and order information. It's a PDF format file that requires  Acrobat Reader.
Price scale & order form (US$) 
Price scale & order form schools (EUR)
Price scale & order form commercial (EUR)
Additional information for PayPal users
We're accepting PayPal payments. If you prefer using PayPal, please address our account  PayPal(at)rdt.de. Don't forget to replace the (at) with an @-sign.
Any questions?
You're not sure about how to proceed? No problem! We'd like to guide you and answer any questions you have about our products and licensing. Please send us an e-mail at
contact(at)rdt.de | 
