I'm in E:\blah\blah but I need to run an .exe from E:\folder name\prgm.exe

However, I am trying to call this without having to do cd ..

I read that just typing E:\folder name\prgm.exe should work. However when I try this I get an error:

E:\folder is not recognized as an external or internal command.

I'm running Windows 7 if that helps.

3 Answers 3


E:\folder name\prgm.exe works if the folder name has no space in it.


  1. Rename the folder so it has no space.
  2. Use quotes. (e.g. "E:\folder name\prgm.exe")
  3. Or add E:\folder name to the path.

Use option 3) if it is an often used program.
Use option 2) for single or rare invokations.

  • Thank you! I had originally tried moving it into a folder without a space, but it wasn't working since the command required an input file argument, for which I was forgetting the E:\... in front of that as well. I couldn't do the quotes since i was running this command from MATLAB which itself required quotes for syntax purposes. Thank you again!
    – Bob
    Oct 20, 2012 at 1:38
  • Thank you for reminding me to add the folder to the path
    – Jim Lahman
    Jul 29, 2021 at 21:30

The reason that you get the error

E:\folder is not recognized as an external or internal command.

is because the system thinks that your folder name is "folder" since what is after the space would be a place to put a flag such as -t or -l . Whenever you have a space in the name of a file or a folder (not really a good practice, you can use a - or an _ to separate words in the name) you should use double quotation marks around the entire name, this includes the filename and its extension. If there is a flag or an option to the command it would have to be outside of the quotation marks example, from you blah blah folder

E:\blah\blah>"E:\folder name\prgm.exe" -t -l 1000
  • 1
    This is really a comment and not an answer to the original question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient reputation you will be able to comment on any post. Please read Why do I need 50 reputation to comment? What can I do instead?
    – DavidPostill
    Feb 6, 2016 at 22:06
  • 3
    That was my first intention but due to a low number of rep points I couldn't comment, that's why I had to write a reply.
    – nassim
    Feb 21, 2016 at 15:50
  • 1
    I understand why you did it. But please don't do that.
    – DavidPostill
    Feb 21, 2016 at 16:47

Just for completeness' sake, I would like to note that in addition to Hennes' answer, there is a fourth option, though in fact you might find it too similar to cd:

Enter pushd E:\folder name and your working directory changes to the specified drive and folder (no quotes required) in one easy step; returning to the previous working directory is a no-brainer as well with a simple popd

  • This solved my problem (thanks mousio) pushd %~dp0, then ... execute whatever, then popd
    – arkod
    Apr 22, 2015 at 12:23

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