The ARO 2013 from Support.com reduces registry entries and cleans up junk files. It decreases boot times by up to 20% for cluttered machines.
Scan
Scans your PC for unnecessary registry and junk files, and runs a baseline security scan to ensure your Antivirus, Antispyware, Firewall, and Windows updates are configured properly.
Clean
Cleans junk and clutter from your PC and Internet browser while freeing up valuable disk space. It also removes remnants of malware files left behind in the registry.
Repair
Repairs registry entries and removes corrupted files.