I'm on a PC. I'm copying a 30GB total (VM splitted disk VMware image, a bunch of selected folders containing photos or whatever) on an external disk with only 1

I'm on a PC. I'm copying a 30GB total (VM splitted disk VMware image, a bunch of selected folders containing photos or whatever) on an external disk with only 10GB left. The thing should tell me beforehand if I have enough space, not midway through the process. Yes I could look it up beforehand, but why make me take three actions (look for free space on device, look for total space required, order to copy) when one would be sufficient? The computer should do the tedious tasks and let me decide.