If your laptop won't boot up or you don't feel comfortable using the command line, turn your laptop over and look for S/N or Serial Number followed by a string of letters and numbers on the label ...

Sometimes abbreviated as Serial No., SN, S/N, or SNID, a serial number is a unique number used for identification and inventory purposes. A serial number allows a company to identify a product and get ...

There are several places to check that might show the serial or IMEI/MEID number. Go to appleid.apple.com in a web browser on your computer. Sign in with the Apple ID that you use on your device.

To check the warranty status on a Lenovo laptop, you should visit pcsupport.lenovo.com. Now, you can either enter the Serial Number, if you have that or click on Detect My Detect.

HP Pavilions ship with a serial number used to identify each unit. Unlike the product name and number, which apply to a specific group of units, the serial number is unique to each computer.