Space on my SSD is running pretty low, and there seems to be a 19GB folder in Windows that sticks out (%windir%\Installer) and cannot be safely deleted (as explained here: https://serverfault.com/q/15746).
mklink provides a neat little thing called Junction links - if I boot in cmd prompt, and move all of the files to the other hard drive, and then run this:
mklink /J C:\Windows\Installer D:\Windows\Installer
Will I be messing up my Windows in some way, or is this an OK thing to do? Will folder permissions/attributes stay the same across the link?
I've used hard links before, and it worked like a charm freeing up my SSD significantly, but I've never tried it on system folders (I don't see why it wouldn't work, but I'm not in the mood of reinstalling entire windows in case I'm wrong)