Two methods to find your PC's serial number On Windows PC

 

1.   1.  Command Prompt:

Press Win + R to open the Run dialog.

Type cmd and press Enter to open the Command Prompt.

In the Command Prompt, type the following command:

wmic bios get serialnumber

Press Enter, and the serial number of your PC's BIOS should be displayed.

2.  2.  PowerShell:

Type Windows PowerShell in search box and run as adminstrator

Type(Copy) the following command to get serial number:

Get-CimInstance Win32_BIOS | Select-Object SerialNumber