Perhaps you have in company shared folder for exchange of non-confidential large files, temp files and so on.

To clean every night this folder :

• create on d disk folder stack/buffer or whatever you like,
• share it
• schedule bat file with following content:

  rem "Be carefull to be inside of stack folder!!!!"
  cd d:\stack
  d:
  del * /s /q
  for /f "delims=" %%d in ('dir /s /b /ad') do rmdir /s/q "%%d"

IMPORTANT: Be very careful with this script, if you run it in improper place you will delete everything recursively !!!