The upgrade might affect the setup, but it shouldn't completely break the dual boot configuration.
The upgrade might affect the setup, but it shouldn't completely break the dual boot configuration.
She should be able to upgrade without breaking the dual boot setup. The 2015 guide still applies, though it’s a bit outdated. Since her main use is Ubuntu but she occasionally needs Windows, the process remains viable.
It's usually best to start with Windows 10 and then add the Ubuntu installation during setup.