Determine the Windows Installation Date with Systeminfo
The Systeminfo command can display detailed information about the configuration of your computer and Windows version, but what we’re interested in here is the Windows installation date.
First, you’ll need to be logged in with an Administrator account in order for the following commands to work. Once you’re logged in, launch the Command Prompt:
Windows 8: type “CMD” from the Start Screen and choose “Command Prompt” from the search results. Windows XP/Vista/7: click Start > Run, type “CMD” in the Run box and press Enter.
In the Command Prompt window type the following command:
systeminfo | find /i "install date"
The command will process for a few moments as it scans your entire configuration. However, since we limited the output to fields that contain “install date,” you’ll see only one result appear once the process is complete: “Original Install Date.”
In the case of our example, this particular version of Windows was installed on September 9, 2013 at 6:10:58 PM. The results are displayed according to your system’s date and time preferences so, in our case, that date is Eastern Daylight Time.
Determine the Windows Installation Date with WMIC
Another method of obtaining the Windows installation date is to use theWindows Management Instrumentation Command-line (WMIC) tool. This can provide much of the same information as “Systeminfo,” although in a less user-friendly form.Just as before, make sure you’re logged in as an Administrator, and launch the Command Prompt. This time, type in the following command:
wmic os get installdate
A single “InstallDate” result will be returned with a string of digits. These digits represent the Windows installation date in the format YYYYMMDDHHMMSS, with time displayed in 24 hours.
In our example, 20130909181058 equates to September 9, 2013 at 18:10:58 (or 6:10:58 PM), the exact same time that was reported by the SystemInfo command.