How to find out the date and time when Windows was Installed in your computer or server?

Sometimes you may want to know when Windows OS was installed?

There are some ways to check Windows installation date and time.

 

Method 1: Using SystemInfo command in Command Prompt
1. Open Command Prompt
2. Run following command:

systeminfo | find /i "date"

 

 

 

Method 2: Using WMIC command in Command Prompt
1. Open Command Prompt
2. Run following command:

WMIC OS GET installdate

 

 

 

Method 3: Using Registry Editor

1. Open regedit
2. Go to following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

 

3. Look for InstallDate DWORD value

 

 

4. This DWORD contains total number of seconds since 1st January 1970.

 

Method 4: Using SystemInfo Command in PowerShell

[PS] systeminfo | Select-String "Install Date:"