Hi. I'm David, and I'm happy to help you.
First, you should check if your computer meets the minimum requirements for Windows 11. Use the PC Health Check app for this.
- Open the Start Menu, type PC Health Check, and select it from the list of results.
- Under "Introducing Windows 11", click "Check now". It will show which requirements your computer meets and which it does not.
If the PC Health Check app is not available on your computer, download and install it from the link below:
https://aka.ms/GetPCHealthCheckApp
If the app indicates that your computer meets the requirements, you can upgrade to Windows 11 using the Installation Assistant (Link below).
https://go.microsoft.com/fwlink/?linkid=2171764
If the app indicates that your computer does not meet the Windows 11 requirements, share a screenshot of the result so I can see if there's anything you can do to make your computer meet the requirements.
Use the shortcut Windows + Shift + S to use the screenshot tool.
Feel free to ask back any questions.