sYmPtOms ThAt MaY bE tHe ReSuLt Of OrDiNaRy WiNdOwS fUnCtiOnS bY a cOmPuTeR ViRuS.

A computer virus infection may cause the following problems: Note: These problems may also occur because of ordinary Windows functions or problems in Windows that are not caused by a computer virus.

• Windows does not start even though you have not made any system changes or even though you have not installed or removed any programs.

• Windows does not start because certain important system files are missing. Additionally, you receive an error message that lists the missing files.

• The computer sometimes starts as expected. However, at other times, the computer stops responding before the desktop icons and the taskbar appear.

• The computer runs very slowly. Additionally, the computer takes longer than expected to start.

• You receive out-of-memory error messages even though the computer has sufficient RAM.

• New programs are installed incorrectly.

• Windows spontaneously restarts unexpectedly.

• Programs that used to run stop responding frequently. Even if you remove and reinstall the programs, the issue continues to occur.

• A disk utility such as Scandisk reports multiple serious disk errors.

• A partition disappears.

• The computer always stops responding when you try to use Microsoft Office products.

• You cannot start Windows Task Manager.

• Antivirus software indicates that a computer virus is present.