It is possible to find the location that records that information by using file or registry monitoring software including third party uninstaller software such as Revo Uninstaller but it can be tedious and frustrating work.

You might think to yourself, how does the shareware knows how many days left in the trial period? Most of the time these commercial and freeware protectors drop some information somewhere deep inside your computer after installation so they know when it was installed and then comparing with the official current time pulled from the Internet. In the earlier days, you can easily run the expired software by simply backdating the date on your Windows operating system but some software has got smarter to detect this and instantly ends the trial period. The amount of days given to try are normally around 30 days but it could be shorter or longer depending on the author of the software. The first one is the demo version with limited or crippled functionality that doesn’t have an expiry date and another type is the fully functional trial version that expires after a certain period of time. Normally there are two types of restrictions for shareware.

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