This really depends on the file. If you have a useless malicious file, such as a infected downloaded file, that has no system importance, then yes, it would be recommended to delete that file. However if it is a infected system file or other important file DON'T delete it. Leave it in the virus chest and see if it is possible to repair it.
If Avast is telling you that a file from system32 is a virus, this means that file could be infected with a virus. If you have the option, just delete the file as you would any other file through Avast; system32 tends to be subject to viruses more than other files, but Avast will usually take care of the virus without problem. However if Avast is telling you that all of system32 is infected -not just a number of files- then you should either seek professional help as this often needs to be delt with on a case by case basis. Or put it into the Avast chest because this will perserve the functionallity of the operating system, however this is not recomended.
The virus be undel until time. Less.
Yes, or moves them to a "Virus Chest"
Try to clean or delete it. If that doesn't work take it to a professional or restore your computer before you got the virus.
http://forum.avast.com/index.php?board=4.0
in c drive
The option move to chest in avast, is like quarantine the item. It moves the item to a secure and separate area, where it can't access the computer. This is a very useful feature and is good, to use if you don't know what to do with a file.
A bronchide is when your chest the lungs are infected.
need to put inter net security or intivirus
Yes it is
Maybe. I think it's best to go see a doctor.
It is got through smoking and your chest will be infected and breathing becomes dificult.