How do i nouns the recovery disk on a dell laptop (vista) which have be giving signs of going unpromising.?

I need to know what switch to press or how to o about loading the OS from the recovery drive. i know for HP i press F11 but i hav no hypothesis how to fix a dell

---

"> pressing F11 should bring up HP's system recover options - select should only be a case of following the prompts - select the drive to overwrite and after confirm and it should be off and running - might transport a while (make sure you've backed up anything you choice to keep as it will also delete any files - folders etc) Source(s): http://www.computer-adviser.com/computer…