How to Find Your Windows PC’s Serial Number

Windows doesn’t display your PC’s serial number anywhere in its interface, and neither do popular system information tools. But you can often find a PC’s serial number with a simple command, a peek in your BIOS, or on the hardware itself.

What Is “Developer Mode” in Windows 10?

If you dig through Windows 10’s settings, you may come across something called “Developer Mode”. When put into Developer Mode, Windows allows you to more easily test apps you’re developing, use the Ubuntu Bash shell environment, change a variety of developer-focused settings, and do other such things.

How to Enable The Experimental “Ribbon” Interface in LibreOffice

If you love Microsoft’s “Ribbon” interface but prefer the free and open source LibreOffice, you can get the best of both worlds…if you’re willing to put up with an experimental feature. While not officially an alternative to the Ribbon, LibreOffice’s “Notebookbar” bears an uncanny resemblance, and it’s a big improvement on LibreOffice’s old-timey toolbars.

How to Turn a Portrait Image Landscape

It’s really annoying when you have a great photo that you want to use for something—say, your Facebook Cover Photo—but it’s the wrong aspect ratio. If you can’t take the photo again, your only hope is to use Photoshop (or any other good image editor) to try and fix things.

Seven Useful Chromebook Tricks You Should Know About

Chromebooks aren’t like traditional laptops. While they’re much simpler, they still have various useful features you may not know about. From accessing remote computers and printing to wiping your personal data, recovering Chrome OS, and installing desktop Linux, these tricks will help you get the most out of your Chromebook.

Is It Safe to Use a Hard Drive While rsync Is Running?

If you are just getting started with rsync for the first time and have multiple large hard drives to make backups of, is it safe to actually use one or more of them during the long process? Today’s SuperUser Q&A post has the answer to a worried reader’s question.

How to Rotate a Video 90 Degrees on Windows

If you’ve ever recorded a video on your smartphone, only to find it sideways or upside down, then you know how frustrating it can be to watch it later. If you use Windows, there are a couple of excellent ways to fix this problem.

What Are MD5, SHA-1, and SHA-256 Hashes, and How Do I Check Them?

You’ll sometimes see MD5, SHA-1, or SHA-256 hashes displayed alongside downloads during your internet travels, but not really known what they are. These seemingly random strings of text allow you to verify files you download aren’t corrupted or tampered with. You can do this with the commands built into Windows, macOS, and Linux.