Most of the virus attack is made on our PC through programs entering our system through pendrive,cd etc.If we can prevent them to an extent,we can save our computer to a greater extent.
Most of the programs enter our system without our knowledge.They get into our system at the moment when we connect it to the system.They mainly use the autorun process.So,if we disable autorun,we can stop them from automatically get installed to our systemafter disabling autorun we can scan them and detect the virusso for that,
Hold left shift while inserting and after that run virus scan ...
To permanently disable :
start-run-gpedit.msc
enter
administrative templates-sysytem
double click turn off autoplay
enabled
all drives
Remember:
Don't double click pen drive ..
Select it from the address bar....