RegRepair 2000 will fix IOS (Initiating Operating System) errors. These errors are the ones you encounter during bootup, when there is a failure to load files in the boot log, and when corrupted font files lock you out of Windows. The program is easy to use, prompts you every step of the way, and informs you of what it is doing and why the file is corrupted in the first place. It will even clean and compact your Registry.