When Windows tells you it's out of memory, what does it mean and what can you do about it?

Many people are concerned that they are specifically targeted by hackers, advertisers, and others. Nope.

Testing your backups is an easy step to overlook but an important one to take. Make sure your backups will be there when you need them.

Backups are critical. But for how long? I'll look at how long you might want to keep backups, why, and how long I keep mine.

Ping is one of the oldest diagnostic tools. It validates connectivity from point A to point B and provides additional useful information.

It's not obvious, but there's an easy way to block all email sent to you from a single domain. Just make sure it's really what you want.

For one thing, it doesn't back up Windows. For another it can make a mess of your folders.

Conventional wisdom says to change your passwords periodically. I disagree.

Programs typically don't use all available memory unless they need it or they have a problem.

If you've suddenly found an unfamiliar antivirus program running on your computer, you're not alone.