Hi,
If your device meets all the requirements to upgrade to Windows 11, you can use the Windows 11 Installation Assistant to upgrade. Please note that this link will expire in 24 hours.
https://go.microsoft.com/fwlink/?linkid=2171764
If you received any errors, please share the error here and include a screenhot of the below information:
Try running the PC Health Check tool: https://aka.ms/GetPCHealthCheckApp