here I've been combing for old documents and stuff to free up disk space on my laptop, when all I need to do is do a little file system surgery to make sure Chrome will not be able to successfully redownload this *four and a half gigabyte* local model when it notices I somehow "accidentally" deleted it (replaced with 0-byte read only locked file, parent folder set to read only and locked, grandparent folder set to read only and locked)