Another quick way is to do a right click on your winnt/windows folder and go to properties and see what date the folder was created.
Originally posted here by DeadAddict
Give this program a try
Sadly Aida32 is no longer update since last week! The developper got a new job and unable to give time to Aida anymore. So for now, the projet is on the ice.
I have seen that they are not going to continue to update it. and I am positive that who ever downloads it while it is still available on the site will get the information that they are looking for with the program.