Right now my computer is booting up fine (not counting the safe boot options menu from where all options lead to what I am about to tell you) and then after the WinXP logo disappears to a completely ...

Turn off your PC instead of restarting it. Disconnect the power cord. If it is a laptop, disconnect its charger and remove its battery (if removable). Press and hold the power button for up to 45 ...

Holding down the shift key while turning a Mac on will boot it into Safe Mode. Here's how to start a Mac in Safe Mode and use it to diagnose issues.