लोकायत.कॉम

I have purchased a compaq laptop 6 months back with liscenced copy of windows vista. I have put a data of 2GB on c drive and installed softwares of 5GB on c drive. but my c drive is showing that this has occupied 47GB of space. whenever i am connecting my laptop to internet, space on c is decreasing sometimes. i have installed Netprotector 2010 antivirus in my laptop. काय प्रोब्लेम आहे?