Have you ever wanted to know when you installed your Windows? You can use Lavalys Everest to check that date, but Windows includes all the necessary tools to extract that date!
It’s really rather simple, just fire up a command prompt, and type:
systeminfo | find “Original Install Date”
If you want to know the installation date of a remote machine, you can use this instead:
systeminfo /s remotemachine | find “Original Install Date”
(see systeminfo /? for more information about how to authenticate on remote machines)