There is two way to find out. So just check below-

First one- Command Prompt to check Windows 10 activation status and expire date

1. Open Command Prompt as administrator: On the search box, type in "cmd" and click on cmd

2. Type in command: 

slmgr /xpr 

and press Enter to run it.

And then you will see the Windows 10 activation status and expire date on the pop-up box.

Second one- Use Run box to check Windows 10 activation status and expire date

1. Press "Win + R" to open Run box.

2. On the Run box, type in: 

slmgr.vbs -xpr

and then click on OK.


3. On the pop-up dialog box, you will see if Windows 10 is activated or not, and the expire date.