Hmm that is odd, not sure why it would be missing.
An alternative option is to create a Windows 10 install disk/USB stick. and Use the Repair windows option at the very beginning. You can create one via Microsoft website
https://support.microsoft.com/en-us/windows/create-installation-media-for-windows-99a58364-8c02-206f-aa6f-40c3b507420d
You will need a spare USB Stick you can format.
When you boot the disk the install will start, the first question will be about language you can just click next. The next screen will look like this, you click repair windows at the bottom and it should bring you to a similar menu hopefully with the advanced options this time around.