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:
• Uninstall OneNote from Windows 10
• WSH to Master Your Computer
• How to Map a Network Folder in Windows 7
• Network Security Through the Principle of Least Privilege
• What is Windows Aero and Mouse Gestures?
• SMART Disk Drives Warn You Before They Fail
• How to Configure Hyper-V on Windows Server 2019
• Windows Server 2019 and PowerShell All-in-One For Dummies
• Windows PC Performance Troubleshooting and Optimisation
• Retrieving Information from Computers Belonging to an Active Directory OU
