TweakBit PCRepairKit can clean out invalid registry keys, repair broken shortcuts and defragment the registry. Its Remote Registry Protection keeps your Windows registry secure from unauthorized external access that could disrupt stability. Autorun Protection ensures that if an infected external device is ever connected to your PC, malware does not auto-run. Desktop Protection prevents Desktop and Explorer processes from crashing to help maintain smooth performance. Live Privacy Protection detects and plugs security holes in your operating system to help protect it from hackers and malware.