Windows 10 Home
I chose the easy option and was confronted with the choice to mutually resize sda5 (Files) and a new partition sda6 for Ubuntu:
What on earth is Files for? Why can't everything just be thrown into sda5 without an sda6? How big should I make Files? I want swap, /home, and root / to all be in one partition. Isn't there now a swap file? And I don't want a separate partition for /home because if I set its size wrongly it will have to be resized in a trade-off with / some time in the future.
I backed up and tried Something Else, which introduced me to a world of terror: Selecting /dev/sda and clicking New Partition Table invited me to wipe my HD clean and install new partitions, not what was wanted at all. Selecting /dev/sda5 did not give me any new options to try.
My previous adventures in making a dual boot were uneventful. But this Files/Ubuntu partitioning has stumped me. Answers very welcome!