Now a days almost every computer is connected to the internet and it does not matter what antivirus you are using, sooner or later your computer is vulnerable to the Malware and Spyware.
As a power user of computer I am always connected with world wide web and consequently suffered many times when my computer started showing uncontrolled behaviors .Combofix is a freeware utility that saves my life and scans my PC deeply for spyware and malware, especially in combinations. It’s a powerful tool that can remove stubborn infections.
It can clean a computer more deeply than typical tools and not just of malware but other junk, too. It finishes with a detailed log that reports each step. Its less than 5 MB of size and you must download it the same day when your computer gets infected otherwise it will not work