with or without the definite article?

Without. "Task Manager" is the name of a program, not a manager of tasks. You are tempted to use the article at all only because of the descriptive name. You wouldn't want to write "with the Windows 7" or "using the Word 2010" in a similar context.

I prefer the definite article. It just seems more natural to me. I taught computers for years and I always used the definite article. I probably picked up the habit of from the books I studied.

Cynthia3754I prefer the definite article. It just seems more natural to me. I taught computers for years and I always used the definite article. I probably picked up the habit of from the books I studied.

You mean just for "Task Manager", right? You could probably catch me saying the article, truth be told, but I still recommend not writing it.

Thank you Enoon!
Thank you Cynthia3754!

No, you don't say "the Windows 7" or "the Word 2010". But you do say "the operating system" and "the word processor".

MUSCOVITEI understand either version ( with and without 'the' before Task Manager) is grammatical? Anyway, which version would YOU prefer anf WHY?

I prefer 'the Task Manager' because I like the sound of it. It sounds right to me.

I always say the Task Manager, though technically the article is not appropriate.