How can I choose what to scan and do a manual scan?
If your system is setup like most, your computer operating system and programs etc. will be installed on your C drive. Therefore, perform a virus scan on your C drive. To perform a manual scan right-click the icon of your anti-virus program (located in your system tray - i.e. bottom right corner of your screen, next to the clock). From the pop-up menu, select the scan option.
gaurav,
It would be nice to know what application software you are planning to use to scan your computer... That way, someone can give you specific advice on how to do it