If you were wondering when you installed Windows 10, here are a few ways to show the original install date and time.

Note - The PowerShell code listed on many websites to show the entire installation history, including the real first install date, no longer works. Numerous registry paths referenced no longer exist, so neither does that information. If you used Reset This PC anytime after your original installation, that becomes your new install date.

Video tutorial:



How to Find Your Windows 10 Install Date and Time - PowerShell or Command Prompt

Open PowerShell or Command Prompt and type in:

In PowerShell or Command Prompt, type in:
systeminfo | find "Original Install Date"

In PowerShell only, type in:
([WMI]'').ConvertToDateTime((Get-WmiObject Win32_OperatingSystem).InstallDate)

In Command Prompt only, type in:
wmic os get installdate



How to Find Your Windows 10 Install Date and Time - Registry

You can also find this information in the Registry.

Open the Registry Editor, and go to Computer\HKEY_LOCAL_MACHINE\SYSTEM\Setup

The CloneTag DWORD on the right has the date visible:



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