Encryption is the process of changing information into something meaningless unless you have the key. BitLocker encrypts information on hard drives so that it can only be read once the key is entered. The key may be managed by a Trusted Platform Module (TPM) chip in the computer, a USB drive that stores the key, or even just a password. If you try BitLocker and don’t like it, it’s easy to turn BitLocker off.

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If Java is installed correctly on your computer, you should never have any problem running Java-based applications or games. However, if there’s something wrong with your setup, you may see the error, “Could not create the Java Virtual Machine.” This error means that the Java installation on your computer can’t launch the virtual sandbox (virtual machine) within which it would typically launch the Java app.

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You tried running a program in Windows 10 and you got the explorer “Class not registered” error instead. Don’t worry. This is a fairly common error. It’s usually caused by a corrupt file that’s linked to “explorer.exe.” However, it can also be caused by a faulty hard drive, although this is less common.

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The Fn key turns the F1–F12 keys into dual-purpose keys. Essentially, it works as a default hotkey, but there’s a slight difference. The combinations differ among manufacturers and models. You’ll mostly find them on laptops (where you can usually change things like screen brightness), but you’ll also find them on some specialty keyboards (like gaming or productivity-centric boards).

In addition to F-keys, you can also use Fn keys with other keys like PgUp, Insert, and arrow keys. Using a combination of Fn along with one of these keys comes in handy for doing a wide range of things, including adjusting the screen brightness, turning off the display, or controlling the volume, among many other things.

However, sometimes, you find that simply pressing an F-key (without the Fn key) triggers a command like increasing the playback volume. In such cases, you’ll be unable to use F-keys for standard keyboard shortcuts like hitting the F5 key for refreshing.

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Windows error codes are scary, and they often pop up without a text description as to what they’re about. Luckily, there’s a built-in utility on your PC that you can use to find short explanations of various error codes generated on your system. We’ll show you how to use it.

This utility is called CertUtil and it runs from Command Prompt. You use an error code (such as 0x80004005) as the argument in the utility and it gives you a brief description of that code.

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Calibration should be the first thing you do when you buy a new monitor. Adjusting your basic settings can improve the color accuracy and overall viewing experience. And, if you’re using your monitor for anything where color is important (like photography or design) then color calibration is paramount—and this includes your gamma settings.

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Most software programs have both Windows and macOS versions. But what happens when you have a MacBook and a certain program or app only runs in Windows? The good news is that you don’t need to have a Windows computer to run Windows-based software.

Executable files are designed for Windows and cannot run natively in macOS. But with the right tools, Mac desktops or notebooks can open programs wrapped in EXE files.

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Microsoft Windows’ printer error “0x0000011b” occurs when you try to print something using a network-shared printer. This error usually occurs after installing a faulty Windows update. We’ll show you how to fix that as well as tweak other system settings to resolve your error.

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