I decided to uninstall Panda free antivirus but during the uninstallation process Blue Screen of Death happen. Then I unplugged the power cord and restart, then use the Panda uninstaller utility of which I downloaded from the net. I suspect if it really works to completely remove everything. After reboot, I use registry cleaner of CC and Glary Utilities to remove registry entries possibly left. I was wondering if there's anything I can do to seek and delete the remaining entries, folders, etc of Panda antivirus and remove them one by one. Can you give me some step by step process? I now installed NOD32 antivirus successfully and it works fine and my pc runs smoothly, but still wonders if there's anything left from Panda antivirus.