When replacing a hard drive or an entire machine, it can be very convenient to have the old hard drive available in an external drive enclosure.

It's not uncommon to get unexpected email sent to an email address similar to your own. I'll review why that is and what to do about it.

Sharing Wi-Fi with your neighbor might seem like a friendly thing to do, but be aware you are potentially putting your own computers at risk.

"Mailbox unavailable" is a common email bounce message that tells us very little. I'll review some of the more common causes of "mailbox unavailable".

Emailing large attachments is typically a bad idea, as your mail may not be delivered. I'll look at alternatives.

Using your computer's power button improperly or pulling the plug can lead to serious data loss. I'll look at the right way to turn your computer off.

Link-shortening services make it hard to tell a link's final destination. When you receive one in an email, you may want to do some detective work to see where it's going before you click.

If your keyboard won't work after a Windows Update, there's a lengthy list of things to try to get it back.

If you're not getting spam now, you will soon -- and probably lots of it. What can you do? There's no magic answer, but there are various things you can do to help.

If no preparations have been made beforehand, accessing the machine of a deceased loved one can be anywhere from easy to impossible.