Make your old PC run like new. Keep your new PC running fast and problem-free. System Mechanic removes junk files, repairs drive errors, manages installed programs, and optimizes the registry to boost your computer's speed and stability. All computers slow down with use as junk files clog the hard drive. Fragmented drives, registry clutter, and driver conflicts also degrade PC performance, ultimately leading to system freezes and crashes. System Mechanic gives you over 40 powerful tuneup tools to eliminate all these problems, and to fix, clean, and speed up your PC -- automatically. The world's best-selling PC tune-up software replaces dozens of less powerful utilities, offering total PC care in a single package. When your computer is on but not in use, System Mechanic intelligently cleans and tunes it, never interrupting you with schedulers and prompts, never interfering with normal tasks, and never competing with other programs for RAM and system resources. Performance, diagnostic, and security features include fully configurable automatic PC tuneup; three-stage registry optimization; hard drive and memory defragmentation; junk file and file fragment clean-up; application management to reduce system overhead; real-time hard drive temperature reporting to alert you to potential drive failure; spyware removal and security leak protection; and military-standard file incineration. A single license can be installed on up to 3 computers.