PC Performer

PC Performer screenshots

It optimizes your registry settings to prevent PC crashes
Scan Results Window
PC Performer 12.0 : Scan Results Window

Alternative downloads

Ace Optimizer Utilities
A collection of tools to optimize and clean your PC.
SparkTrust PC Cleaner Plus
Full-featured PC optimization tool to keep your computer clean and protected.
NETGATE Registry Cleaner
It can clean and defragment Windows registry.