Try supplying make, model and more. Tell if you have some MSFT Vista DVD to repair with or this is a laptop with no restore media and the only option is a total restore.
Read your post and add the missing details. As it stands it looks like you have to go buy an OS to install.
Was installing the new Sims3 game and it froze, powered down the laptop (Windows Vista) and now everytime I try to turn it back on it will not start. It goes to a screen that says start in normal mode or fix problems mode, neither work when I chose them, Can someone help?