loveyou.exe
The LoveYou trojan displays a rapidly flashing screen that fakes a formatting of the hard drive and a deletion of the BIOS. It also displays rather rude messages. After this is finished it overwrites the WIN.COM file with a program that reboots the computer, and copies the original WIN.COM to WIR.COM. This can only be changed in pure DOS.
When you run this virus, after a while, after a while, it will format the hard drive and delete the BIOS and you'll get the "BIOS ERROR: NO BIOS FOUND!"
When you attempt to close it, you'll get this erorr message:
Once you click OK, the system will restart, shows the startup screen but Windows failed to start and you'll get this:
Microsoft CD-ROM Driver, Version 1.1 (IDECD001)
C:\>C:\WINDOWS\VMADD\SYSINI.EXE
C:\>
Cannot find WIN.COM, unable to continue loading Windows
C:\>_