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Uninstall Avast Antivirus Trial using Advanced_Uninstaller11 software. It will delete the antivirus totally and you will be able to install it again.
Use a program called Revo Uninstaller, search for it on Cnet to get a free download.
Bundle software
Most trial version software is the same software as the full, integrated version. Only inserting a valid key or some other method will turn it from a trial version to the full version. Therefore, there isn't a certain "file" that is responsible for it being trialware.
See related links for information about and a link to download a trial version of Post Office Agent software.
You can find the amount of time the trial version lasts by either going to the website from which you downloaded the software or by going to the help menu and selecting about. A standard amount of time a trial version usually will last is thirty days, but this can vary from software to software.
commercial software
Cracking a trial version of a program in regedit is not a legitimate way to get access to software. If the trial expires, you must buy the full version.
To turn a trail version into a full version, you must pay a fee to the owner of the software. The owner will email you a license key which will allow you to either download the full version, or to open the trial version into the full version.
no, it should automaticly become the full version
Most often by buying the software. Most often by buying the software.
Buy the software.