How To Reinstall Trial Software After Trial Period Has Expired

Method 1: Back Up Registry

Most trial software add a key in your system registry by tweaking it. When you uninstall a software after it’s trial period has expired, all files are deleted except the keys in the registry. Therefore when you try installing it again, it detects the key and gives you a message like for e.g, “Your trial period has expired”.

So the best way is to make a backup of the registry before installing any trial software. And when finally your trial has expired, you can uninstall the software, restore backup and try installing the software again. 

Method 2: Using Process Monitor

Process Monitor is a free tool for Windows that shows real-time file system, Registry and process/thread activity. With this you can see which applications are accessing your Registry, which keys they are accessing, and the Registry data that they are reading and writing – all in real-time.

Note: By default it will show Registry activity, File System activity, Network activity, and Process and Thread activity. You can filter out all activities except Registry activity so that it becomes easy to track changes in registry. To red circle in the screenshot below shows where you can filter out other activities.