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:
• Is Your Critical PC Data Adequately Protected From Disaster?
• Synchronize Your PC's Clock with an Internet Time Server
• Use Windows 10 File History Option to Backup Your Personal Files
• Firewall Rules
• Windows Server 2019 and PowerShell All-in-One For Dummies
• NTFS Permissions
• How to Optimize Your Solid State Drive
• Three Important Techniques for Securing a Wireless Network
• Easy PC to PC Files and Settings Transfer Cable
• Msconfig - Microsoft's Secret Weapon to Increase Your Computer's Speed
