Junior often breaks local environment

Looking for advice on how to utilize and mentor a junior who is often breaking their local environment.

I've helped them extensively to restore things but they have been with team for three years and it seems absurd to not be able to resolve issues intheir setup.

Thus far I've pushed back; enforced the need to submit a memo on what they've done/tried. Sent them resources and also told them what to do but haven't done it.

It's trivial stuff like screwing up their VS code settings and not know to just delete app data.

Or somehow screwing up a json settings file.

When things work; they do decent work but I am increasingly losing too much tike helping them and they can't be counted to take on complex problems.