Download PDF by Ralph Roberts: Compute's Computer Viruses

By Ralph Roberts

ISBN-10: 0874551781

ISBN-13: 9780874551785

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Ensure that the system has booted properly. 5. Back up all nonexecutable files from all directories onto newly formatted floppy disks or to a tape backup unit. If backing up to another fixed disk, ensure that the disk has not been infected. ) Do not use the backup utility on the fixed disk. Use 47 Chapter 4 6. 7. 8. 9. 10. 11. 12. 13. 14. a utility from the original package. Note: At no point in these procedures should you execute any program from the infected flxed disk. List all batch files on the infected disk.

Often public domain or shareware programs will better do your specific tasks. These programs also offer features on the leading edge of programmingthings the commercial companies, with their much longer development period, will not implement for a year or more. Pull-down menus, windows, and many other now takenfor-granted features of commercial software first appeared in public domain programs. Of the many thousands of such programs available on Compuserve, Delphi, and the other major computer networks, and on hundreds of local electronic bulletin boards, probably far less than 1 percent are currently infected with a virus, or will cause damage in some other way.

If none of the above works do a complete backup of the disk (if you haven't already done it). Now you're going to have to do a low-level format of the hard disk. Instructions on how to do this depends on which controller card you have. This information should have come with your hard disk controller card. COM by Chris Dunford) or by manually entering the locations of bad sectors into the low-level format program. After the low-level format, run the utility FDISKCOM (it comes with DOS) to create a DOS partition.

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Compute's Computer Viruses by Ralph Roberts

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