Windows batch file starting directory when 'run as admin'

Question

I have a batch file which is in a directory and must be run from there as well because it updates files within this directory.
This works perfectly fine, except when t

Answer 1

You can CD directly from the file name by adding the parent (not tested in windows 8.x, but has worked "forever" as far as I can remember).

CD %FILENAME%\..

and CD will change drives as well using /D, which is shown above but not explicitly mentioned so might be missed. CD /D %FILENAME%\..

(FOR /? IF /? SET /? CALL /? GOTO /? all provide highly useful reading if you use cmd.exe, I reread them once in a while.)