For me it is the get everything setup to work correctly in a "Windows" environment. Compilers, system variables, command lines (powershell, cmd and bash) and ed

For me it is the get everything setup to work correctly in a "Windows" environment. Compilers, system variables, command lines (powershell, cmd and bash) and editor/debugger setup take a lot of time. Almost every new project I am forced to use a fresh machine so getting all this setup each time I start a new project is consuming (never mind downloading all the packages/libs I'll need).