Computers require regular maintenance. Once you realize yours isn’t performing like it once did, don’t simply assume you need to buy a new one; it might just need a tune-up. A PC system utilities application can clean your computer’s registry, repair its hard drive, generate free space on its hard drive, optimize system processes and recover data. These applications will address issues that can potentially diminish your computer's functionality, including registry and hard drive errors, unneeded files that clutter your disk space, security vulnerabilities and inefficient system settings.