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:
• How to Audit Security Permissions and Access Rights in Active Directory
• Script to Display the Processes Running on a Computer
• Choosing a Tape Drive
• Guide To Setting Up Dual Monitors
• What is Hyper-V in Windows Server 2019?
• The Windows 7 Backup and Restore Utility
• A Day in the Life of a System Administrator
• Windows Server 2019 and PowerShell All-in-One For Dummies
• Set the User's Profile Information
• Turn Off Windows 10 Snap and Shake
