Yes, it will free up HD space if you have a large map and you traveled a lot. Some world saves can be quite large.
If you have a Mac then right click on the world and select "Get Info" to find the size of the file, if you have Windows then right click and select Properties.
If you can't afford an external HD for storage then you can alway buy like a 16gig USB flash drive to save the worlds if you don't want to delete it and use it again later. The flash drives have come down in price a lot.
Uninstall it .....deleting will just make the icon dis appear .. which is a wastage of memory
no, the data is not an actual thing that has weight so it makes no difference, gf school systems
No, unless you save a world on your computer files
log in to minecraft, click singleplayer, click create new world, then choose what you want in it.
Depends, if the error was "Out of memory!". Then one easy solution, change the java settings.
Minecraft doesn't have projects. If you want to have a project to, say, make a cannon, just make the cannon. You might mean "How do I make a world", just press Singleplayer and New world.
That happens when the game runs out of RAM to use. Make sure no other programs are running and maybe even reduce a few settings. It can also happen due to world glitches.
no
No, Only The Surface World.
First, go to the Minecraft folder. Go to the save files. Copy the world you want, and paste it back in. This will copy the world, and make a duplicate.
Memory cards have fixed sizes of memory, so you can't increase it in that sense, like change a 2GB card into a 4GB card. You can make more of the memory available by deleting existing files or making copies of them elsewhere so you can free up a card. If you need more actual memory, you just have to get another card.
Yes, the more RAM (Random Access Memory) you have will make Minecraft run smoother, though you don't have to have very much. Closing programs you aren't using at the time helps speed up Minecraft, and also changing your render distance within Minecraft will help speed it up.