Hi, I am Dave, I will help you with this.
Click your Start Button, then just type winver and press Enter, on the resulting dialog, is it indicated you are currently on version 21H2 or 22H2 of Windows 11?
If you are on either of those versions, then you do need to update your system.
The most successful method to install version 24H2 is to use the Windows 11 ISO.
Please follow the steps, this is then not like re-installing Windows, it is just like an update and your personal files, settings and installed software will not be affected.
Click this link:
https://www.microsoft.com/software-download/win...
to download the Windows 11 ISO
When the ISO file completes downloading
Disconnect from the Internet
Disconnect all external devices with the exception of a mouse or keyboard.
Temporarily disable any 3rd party Anti-virus you may have installed
Then, in Windows File Explorer, double click the ISO and then run Setup.exe and select the Install option.