Does the free upgrade from windows 7 to windows 10 delete windows 7 or does that have to be done manually?

[Jonaroo]

What the title says. Does the free upgrade from windows 7 to windows 10 delete windows 7 or does that have to be done manually?

 

[USAFRet]

What the title says. Does the free upgrade from windows 7 to windows 10 delete windows 7 or does that have to be done manually?

It create a Windows.Old folder, containing most of the old Windows install. This folder goes away by itself in 30 days.
Or, you can manually delete in via Disk Cleanup.