Press Windows key + R
Type `cmd` and press Enter
Type `hostname` and press Enter
Check the computer name shown in the result
Press Windows key + I
Go to System
Select About
Find Device name
Open Control Panel
Go to System and Security
Select System
Find Computer name
Open File Explorer
Right-click This PC
Select Properties
Find Device name or Computer name
Open Settings
Go to System
Select About
Find the PC name
On Mac, click the Apple menu
Select System Settings
Go to General
Select About
Find the Name field
On Linux, open Terminal
Type `hostname` and press Enter
Check the computer name shown in the terminal