There may come a time when you may want to or need to know your Windows installation date or the date and time when your Windows 11/10 OS was installed on your computer. There are several ways to find this out, which we will discuss in this post.
How to check OS Installation Date in Windows 11/10
To find the installation date of your Windows 11/10 OS:
- You may see the Windows folder Properties
- Check the Windows Registry
- Use the systeminfo command-line tool
- Use a PowerShell command.
Find out Windows Installation Date using various methods
1] Use the systeminfo command-line tool
The easiest and most convenient way of finding the Windows Installation Date would be to use the systeminfo tool, which we have already talked about. To use this built-in tool, open a command prompt window, type the following, and hit Enter:
systeminfo | find /i "Install Date"
You will be able to see the Original Install Date and Time.
2] Windows folder Properties
The easiest way to find out when your Windows OS was installed, would be to right-click the Windows folder, select Properties and see the entry in front of Created under the General tab. Here you will see the time and date.
But if you have upgraded your Windows version to a higher version, you will see the date when the earlier version was installed and not when the latest version was installed or upgraded.
3] Check the Windows Registry
The Windows Installation Date is also stored in the Windows Registry in the following key, as UNIX time, ie as a 32-bit value displaying the time in the number of seconds since 1st Jan 1970.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\InstallDate
My Windows was installed 1382359164 seconds since 1st Jan 1970, so you need to do some calculations to arrive at the figure.
Read: How to find the Installation date for apps and programs?
4] Use a PowerShell command
The Windows install date is also stored in the property InstallDate of the WMI class Win32_OperatingSystem. You can use PowerShell to get the date and time of installation.
To find out the date, open Windows PowerShell as Administrator, change the path to C drive, type the following, and hit Enter:
([WMI]'').ConvertToDateTime((Get-WmiObject Win32_OperatingSystem).InstallDate)
The date and time your Windows was installed will be displayed!
Now read: How to find out System Uptime.
Enjoy the rest of the day!
How can I tell when a program was installed on Windows?
To find the Installation date for apps and programs go to “Programs -> Programs and Features.” You will see a list of installed programs and an “Installed On” column showing each program’s installation date. This lets you check when any program was installed on your Windows PC.
How to check Windows installation?
To check your Windows installation, press Win + R, type “winver,” and hit Enter. This command opens the “About Windows” dialog, which displays your Windows version and build number. You can also go to Settings > System > About for detailed information about your Windows installation.
