WMIC (Windows Management Interface Command) is a command line tool that returns information about the system where it's run. To open a command line shell, at the bottom of the screen, left side of the taskbar, in the Windows search text box, type cmd. To learn your computers model, vendor, and serial number, type the command shown below at the command prompt.
wmic csproduct get name,vendor,identifyingNumber

Perfoming an online search with the name and vendor information provided will return loads of information allowing you to find upgrade, troubleshoot, or repair your computer.
More Windows Administration Information:
• A Handful of Useful Run Commands: calc, notepad, wordpad, voice recorder, control
• Computer Technician's Guide to Safety
• Use Windows 10 File History Option to Backup Your Personal Files
• How to Setup DHCP (Dynamic Host Configuration Protocol) on a Windows Server
• How to Create a Bootable USB Drive
• How to Check Your PCs TPM
• Script to Print a Directory File List
• PowerShell Script to Show Last 5 Errors in Event Log
• Computer Data Backups - Test Now or Cry Later
• Create and Change Password, Picture and User Name in Windows 7
