Hi I have error message Ox00000F on my laptop

You should be receiving this message after Vista is attempting to load. On newer computers, the Recovery and reinstall software is installed on another logical disk in your laptop. When you boot your PC from a cold-boot (meaning power has been off for at least 25 seconds) press F8 or F12 (not all pcs use same keys) hold the key for 2 seconds to get to the Advanced boot options. You must do this fairly quick or Vista will try to load. Once here you can choice from different options. The first thing I would try is "Last Known Good Configuration". Just use arrow keys to select it and press enter. If this doesn't correct your problem, then go back to the same menu and look for the option for the Recover Utility.