To find this information, you need to look at the properties of one of the files that is installed with Windows, for example, Notepad. Open the Start Menu, browse for the shortcut and right-click on it. Click Properties and select the Shortcut tab, if not already selected. Click on Open File Location and then right-click on the highlighted file. Again, select Properties. Click the Details tab. The information you require can be found next to Product version.