I am starting a long, memory and CPU-intensive run. I know how to change the process priority manually from the task manager.

Is there a way that I can run it at low priority from a .bat file, since that is how I start it?

1 Answer 1


Start it with the Start /low command and parameter, e g Start /low c:\foo.exe.

If you want to start a program with spaces in path and with arguments, you need to specify a title as well:

start /low "Title of cmd window" "c:\program files\blah\blah.exe" --argument
  • Note that this starts it in a new window if the command itself is a .bat. The window doesn't close when the command done. That works fine for me, but could be annoying. May 19, 2011 at 17:55
  • 3
    @Brian: You can start cmd /c foo.bat in that case.
    – user1686
    May 19, 2011 at 18:01
  • "If you want to start a program with spaces [...] you need to specify a title as well" ... this made my day ! Dec 12, 2016 at 17:10
  • 1
    Note: any programs started from within the foo.bat retain the lower priority, great for multi step scheduled long running tasks like backups. Sep 29, 2018 at 1:00

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.