Stephanie,
Sorry, but you posted in the wrong forum. This is a forum about these forums, not about PC problems.
Please try our Computer Help forum. And, while reposting, add some details like what version of Windows (XP, Vista), what make and model of PC, how old (approximately) and what happens if you turn it on and in what phase of the booting it stops. The full error message would be nice also, if there's more on the screen than this number only.
A fast google search mostly turns up Vista for this error number, by the way.
Kees
cannot load windows at all just has a black scream with a code number 0xc0000225
tried everything not sure what to do
any ideas
stephanie

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic