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Determine the installation date of software under Windows.

Windows is one of the most popular operating systems in the world. Sometimes users may want to find out the software installation date in Windows OS to keep track of all the programs residing on the computer. This can be easily done by running regedit and opening the CurrentVersion section. One can find the software installation date under the field InstallDatefrom where the date appears in the YYYYMMDD format.

Determine the installation date of software under Windows

It is sometimes useful to know when software has been installed on a PC, for example if you are looking to establish a history of programs used on your computer.

Indeed, the software installed does not stay still in the folder Program Files. Some are placed in other folders or filed directly into Windows or System.

Here's how to check

  • Open the Windows registry by running the program Regedit.
  • In the left pane, open successively the keys:

HKEY_LOCAL_MACHINE ? Software ? Microsoft ? Windows ? ? CurrentVersion Uninstall
  • Once the last open key, you see a number of lines, each corresponding to a program installed. These lines are cryptic names but to find your software, you can just scroll through them one by one, and by looking in the right pane at the contents of the field DisplayName, you can see the desired software.
  • The date of installations figure (usually) under the name in the field InstallDateform YYYYMMDD (eg 20090301 for here March 1, 2009). Another advantage of this method: you get bonus number correct software version installed through field DisplayVersion.

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