1
Depending on your current build number of Windows 11 24H2, you may be able to perform a quick upgrade to 25H2 using an enablement package.
Click your Start Button, type winver and hit Enter
Please provide a screenshot of the resulting dialog.
2
KB5077241 is an optional preview update, it is basically an early beta release of the March update.
The optional preview updates can be hard to install sometimes, may contain bugs and there is no need to install the optional preview updates.
If that update is continually failing, below that update is a switch to 'Get the latest updates as soon as they are released', disable that option and restart your PC, that will stop the optional update continually trying to install and wait for the full March update to be released.