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The RD command removes directories if the directory is empty.

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DEL and ERASE both erase files, but not directories.

REMOVE is not a valid command.

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This is a classic example of adware.

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A popup could also be a virus, worm or Trojan. However, in this case, the advertisement is clearly adware.

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If your previous theory proves incorrect, it's time to either come up with a new theory or escalate the problem to someone else who can help.

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None of the other options are appropriate steps to take when your theory is proved incorrect.

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Windows' Parental Controls has no control over torrents.

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Windows' Parental Controls enables control of the time of day, games, and web site filters.

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QoS is the Quality of Service tool that allows your router to share the bandwidth among users.

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A digital subscriber line (DSL) is a type of internet connection.

Virtual network computing (VNC) is a graphical desktop sharing system.

Wide area network (WAN) is a computer network that covers a large geographical area.

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Ask the client to remove the folder and then work on the PC. Not only must you be honest and trustworthy when working for a client, but you must also be above suspicion.

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Never put yourself in a position where the client wonders if you might have done something wrong. Looking at or stealing the files is a bad idea. And if you try to ignore the folder, you may be tempted to look at it. Just have it removed and save yourself the trouble.

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Documenting every person who has had possession of the computer is very important when dealing with confiscated PCs.

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Unless you're with law enforcement, you don't need to be documenting the stuff on the PC.

If the computer is being transferred, the prohibited activity has probably already been reported.

Don't preserve illegal data! That's a good way to get in trouble yourself!

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Internet Options in Internet Explorer has several settings, including one to clear undesired SSL certificates.

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The other choices do not control SSL certificates.

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The Windows Memory Diagnostic tool diagnoses memory problems.

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System Restore just restores Windows to a previously-set snapshot.

The System File Checker makes sure that all of Windows' system files are in proper working order.

MSCONFIG is the tool that enables you to set startup programs.

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Surge suppressors only protect from voltage surges, not sags.

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A UPS is an uninterruptible power supply that protects from surges and sags.

A power outlet provides power.

A ground fault interrupter is an outlet designed to protect people from electrical shock.