Windows 7 - Hardisk spinning down

How can I stop my hardisk from spinning down? When I’m watching a film the picture freezes for a moment and then I hear the hardisk spinning up again!

is it an external, is there a sleep mode setting on the hd

internal

What you discribe tends to be pretty standard, but it doesn't hurt to try.

Go to power options under control panel and beside the plan you have selected, click Change Plan Settings, then click Change Advanced Power Settings. Expand the Hard Disk part by clicking the plus sign next to it. Look to see if the Hard Disk is/are set to turn off after a certain amount of time. If the amount of time is equal to or less than how often the video stutters, you could try setting it to never turn the hard disks off and see if that helps.

Also, how often does this happen? You say in your system specs that you have two hard disk. On which one are your videos stored?

Thanks Petey7 I've changed all the sttings to "never" see what happens

Looking forward to hearing your results, but could you please respond to the questions above? It would help myself and others in figuring out exactly what is going on and how we can help you stop it from happening.

This situation happens on C\ & D\ drive but so far things look good! As regards how often its hard to say as pc is on most of the time but at least after say 5 to 6 hours.