Kryptonneke

On my machine I have a 4 in 1 cardreader that exposes the 4 cards as drives with removable media that is always connected to my machine via USB. When trying to determine which drive is my CDROM drive with something like FOR %%i in (c d e f g h i j k l m n o p q r s t u v w x y z) do if exist "%%i:%tagfile%" set CDDRIVE=%%i: I always get error multiple messages (3 or 4) popping up stating something like "No disc in drive". This happens at various stages during the unattended install. e.g. this code is used in the preset.cmd file of Bâshrat the Sneaky's driverpacks But it also happens during [GUIRUNONCE] etc. I understand why this happens (no discs in the removable media drives) but it is very annoying as it effectiely breaks the unattended install. Only solution I have found so far as to stop the search at the letter f or so. Any other suggestions to avoid these popups?