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:
• Introduction to Windows PowerShell
• Top Ten RAID Tips
• WSH to Master Your Computer
• Synchronize Your PC's Clock with an Internet Time Server
• How to Configure the msdos.sys file
• What is the difference between MSI and EXE Installations?
• A Brief Introduction to 3D Printing
• Configuring Windows as a NTP (Network Time Protocol) Server
• How to Audit Security Permissions and Access Rights in Active Directory
• Network Security Through the Principle of Least Privilege
