How to add, change, and remove a lock screen message in macOS

You can set a message to appear onscreen when people log into your Mac. Here's how to set it up, as well as how to remove it.
Techlicious

Windows Notifications Not Showing? Here’s the Fix

Google Calendar alerts stopped appearing on my PC. Here’s the PowerShell fix that instantly restored my Windows desktop ...
How-To Geek on MSN

How to pipe and redirect like a pro in the Linux command line

Many hands make light work.