Optimizers & Diagnostics Software

Optimizers & Diagnostics covers tools that check your computer's health and try to improve its performance: hardware diagnostics and benchmarks, temperature and memory testers, startup managers, junk-file cleaners and system tune-up utilities.

Diagnostic tools are useful for finding real problems, such as a failing drive or overheating. Be cautious with programs that promise dramatic speed-ups or report hundreds of "errors": registry cleaners and "RAM boosters" rarely make a noticeable difference on modern Windows, and some are designed to push you into buying. Create a restore point before letting any tool change system settings.