How do I get 100GB C space free for a game?

My C memory is almost full, do I have to completely reset the laptop to get C memory, or is there another possibility? I've already cleaned it up and deleted everything I didn't need. I still have 279GB on hard drive D but no idea how I use it

Must select D in the installation program.

How much memory do you have in total on your C drive? You could uninstall programs / apps that are not yet needed there. Empty the trash. Remove Windows Update data (right click => Properties on C drive => Clean up storage).
If you should install the game via Steam, you can also add additional hard drives to your library and thus install games on multiple hard drives. Alternatively, you can usually choose where the game should be installed when installing.

So can I just save the game to drive D? I have already done everything else, unfortunately unsuccessful, I have 57GB of 185 although I have no more programs…

How can I do this at Epic games? Change the C to a D at the installation location?

Create folder in D and then select it.

Worked, thank you.

With pleasure.