The task must be configured in two steps.
First you create a simple task that start at 0:00, every day. Then, you go in Advanced... (or similar depending on the operating system you are on) and select the Repeat every X minutes option for 24 hours.
- Double click the task and a property window will show up.
 - Click the 
Triggerstab. - Double click the trigger details and the Edit Trigger window will show up.
 - Under 
Advance settingspanel, tickRepeat task everyxxx minutes, and setIndefinitelyif you need. - Finally, click ok.