AntiExe
AntiExe is a master boot sector virus. A boot sector virus, such as AntiExe, can cause a variety of boot or data retrieval problems. In some cases, data disappear from entire partitions. In other cases, the computer suddenly becomes unstable. Often the infected machine fails to start up or to find the hard drive. Moreover, error messages such as "Invalid system disk" may become common.
I was downloading my old cad dwgs into the computer and the computer spotted the antiexe viruls....this is realy old because I have been retired for 15 years....I hope it does not infect the computer...came from a floppy in a: