I have Ubuntu from under Windows, but now there is no need for Windows, with all the data that is now there must be left intact and safe (those that are on ubunt), the actual question is how best to proceed in this case?
Or is there only one way out - to demolish everything and set it "from a clean screw"?
Another thought was - if it is stupid to format the disk with Windows, will ubuntu start? And if so, will it function normally?