Kerish Doctor 2016 is a comprehensive Windows repair toollkit for automatic fixes system errors, optimize and maintain Windows-based computers. This software helps fix errors in the system, optimize performance, prevents system crashes in real-time, make the computer safer, fixes system registry errors, protects your computer from potential vulnerabilities, taking out the trash (cache files) of system, applications and history safely and automatically. It regularly purge of the system thus improving system performance.