Without a doubt, one of the most criticized defects in Windows is when a critical system update is found, since on certain occasions when Windows Update needs you to restart the computer in order to install it, it is possible that your computer suppress the option to shut down in the boot menu, giving only the option "Update and shutdown" instead.
It is clear that this is done for security, so that the computer can deal with new threats and vulnerabilities, but the truth is that especially in somewhat old computers not always well due to lack of time, taking into account that the next time it boots it will take longer than usual. However, it seems that finally the problem has been officially solved in Windows 10.
This is what you have to do to avoid having to "Update and shutdown" in Windows 10
As we mentioned, the solution to this problem on Windows 10 is simpler than usual since it is a problem that, probably by popular request, has been officially solved. In this way, although it seems a bit ironic, what you should do is update your computer to the latest version available.
In this way, you can use the windows update wizard to be able to achieve it in a fairly simple way, since functionality is included from Windows 10 May 2020 Update and in later versions of the operating system.
Taking this into account, once you have Windows 2004 version 10 or higher installed on your computerInstead of only showing the text of "Update and shutdown" when there is an important update available, both in the Start menu and when pressing Alt + F4 they should appear, apart from the options to update, the ability to shut down or restart your computer without having to do any installation.