If WinMaximizer finds any invalid Entries there it's usually because there has been an application error in an Office program, another word processing program, graphics and games, Font files are left corrupt but it's easy to cure these inconsistencies and keep them from taking up space in your Registry. WinMaximizer detects and confirms that fonts registered in windows physically map back correctly to the font file. If a font entry exists in Windows, but the physical file does not exist, the registry will be fixed to remove that items mapping.