Let’s download and install the trial version, step by step!

You can find a number of convenient download links on the home page. For example, click on the highlighted button as shown below. These buttons will always highlight for you when you mouse over.
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In Firefox, you’ll see a small window asking if you want to save the file. Go ahead and click that.
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In Chrome, the file will be automatically downloaded and will appear at the bottom of the page. You can see this below with your options expanded.
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Either way, the file is going to be stored in your download folder:
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Now all you really have to do is double click on this file to start the install process but at DayZero, we insane about safety. So, for some of you who wish to make sure this file is safe, follow the next three figures. Anyone else, please feel free to skip the next three figures if you like. In the next figure, we’ve highlighted the file and right clicked and have highlighted properties which we will click on next.
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When the properties window opens, click on the Digital Signature page and you will see the following:
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We’ve highlighted our signature and clicked details and the General tab confirms that the digital signature checks out OK. This is telling you that the downloaded software is coming from a trusted source. Further, DayZero goes to great lengths to protect its software. We do our best to make it very difficult for anyone to crack our code or to insert any type of malware into our installer. If anyone happened to be successful in doing this, our digital signature is structured such that it would disappear. So, no one can change our installer package without violating the digital signature.

If we click on the advanced tab, we’ll see more details about the certificate as shown below.
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Now back to the install process, when we double click on the file name in the download folder, we’ll see:
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Since we want to install, we click Next and we now see the license agreement window. Now, we really want to install this great software soon so we, after reading it, click that we accept the terms of the license agreement and again click next:
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Now, we are given the opportunity to change where this program is stored. Normally, it is best to leave it in the folder already shown. This will help when you decide to add other programs from DayZero. So, we now click Install:
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You will be able to watch the progress of the installation and when it is completed, you will see the next window letting you know the installation completed (it really didn’t take very long) and that you will need at some point to restart your machine in order for Cerberus to do its job.
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When you click Okay, you will see the next window which asks if you wish to reboot your computer now. We recommend you save any close any programs and reboot your machine at this point:
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As you computer restarts, Cerberus will tell you that it is now protecting you!
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If you check your license status now, you will no longer see the trial message, but instead a message like the following:
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Congratulations, you now have zero day, signature-free protection against worms and similar self-propagating malware including many types of viruses. Look for more from DayZero Systems in the near future!