Windows Doctor is a top professional program on the security protection and system optimization of the Windows operating system.

Windows Security Analysis:
Windows Doctor can fix security vulnerabilities in the Windows operating system, clean Startup items, BHOs, services and processes that threat system security to provide you with a safer system.

Registry Cleanup:
The program rapidly and thoroughly search and clean useless and invalid information in the registry, so your system can run faster and more stable.

Privacy Cleanup:
It thoroughly cleans the traces of your Internet access and software use in the system to protect your privacy. The function supports many applications such as Internet Explorer, Mozilla Firefox, Opera, Yahoo Messenger, Adobe Photoshop, Adobe Acrobat Reader, WinZip, Windows Media Player, RealPlayer, etc.

System Optimization:
The function of System Speed-Up analyzes various information such as CPU, memory, services and drivers, and intelligently provides an optimized solution based on the current system configuration.

Utilities:
"Utilities" (Advanced Tools) includes System Information, Service Manager, Process Manager, BHO Manager and Startup Manager.

Update Wizard:
Update Wizard helps you make sure that you are using the latest version of Windows Doctor, in turn, to protect your system more thoroughly.

Restore:
Windows Doctor supports full restoration which can help you restore any modifications you made on the system.