"No Disk" Its not a virus........ Its ur disk problem . . . .
Yes, if the removable disk is connected to your computer then it will be infected.
pls tell some idea to take backup of virus infeced hard disk
You'll need to boot from something else, a rescue disk, the original installation disk or another disk that lets you repair the damage caused by the virus.
Boot virus
The virus will have to determine this answer. Depending on how severe the virus is, you may or may not be able to recover your computer disk from a virus ever. If not so severe, I'm sure there are programs you can buy at your local store to get it back.
You can check your hard disk's memory and search string by string for the virus, or if you don't want to spend that time, format it. Although the latter will delete EVERYTHING.
Sometimes Disk drives don't read disks due to virus or Scratches on the disk. Best to check the disk first to see any scratches or dirt. if not it may be because of a virus or worm. Best to check that out as well, Goodluck!
Elk Cloner
Yes, they can. It has happened before.
You can check your hard disk's memory and search string by string for the virus, or if you don't want to spend that time, format it. Although the latter will delete EVERYTHING.
optical disk storage are read only so they cannot get infected. But if you burn files which are infected by viruses then the optical disks can spread the virus