why avi, mp3 files are automatically changing its extension to jpg in my system?

This is because of a malware and not a virus, and hence will not be detected by the anti-virus. To begin with, go to msconfig and disable the start up program from C:\windows\system32\mcont to prevent if from changing everytime your restart.

Then check out this link for how to remove the software and also how to change all extensions at once: http://techrepublic.com.com/5208-7343-0.html?forum...

Just change the file extension from .jpeg to .avi or .mp3 and change the program to open with to Windows Media Player.

it is totaly possable to change the file extention, but thats not going to change a picture to a song. assuming you are using windows. first you need to open windows explorer(my computer) then click on tools, folder options, then on the views tab, then uncheck hide extentions for known file types, click apply and ok, and then go the file you want to change and rename the extention and your done. WARNING, this doesnt change a photo to a song, and i dont know any way to do that unless you are a composer, and then you will have to do in your mind.

It must be a virus.. I advice u scan ur systm with the laqtest versions of kaspersky or avast antivirus..

And fr my question.. the songs in some other language..must be spanish or smthng.. wd appriciate ur help.. My frn wants dat song... :)

Rush to Explorer. Go to the file and right click it. Select OPEN WITH.

Some extension mishap.

i think ur system is infected with virus