A virus protection

One form of virus XE "virus" is called a “boot Sector” virus. The system design dedicates one sector of a floppy disk to contain the first minimal bootup program. When the computer turns on, it may execute the program in this sector, to start bootup from a floppy. If the floppy has a boot sector virus, it will transfer to the hard drive. Then you get a message saying that is a non-system disk. One protection is never to leave a floppy in your computer. However, I know better, and do it frequently. Newer computers can have the BIOS setup (beyond the scope of this book) set to that they will not attempt to boot from a floppy, which means that a virus can’t transfer in this manner. This precludes booting from a floppy, but if you can’t boot from the hard drive, you probably need a technician anyway.