Software you did not know about.
WHAT MOST SYSTEMS INCLUDE
A screenshot and screen recording tool A calculator with several modes A basic text editor A file compression tool A disk usage viewer A task manager A backup facility A basic image viewer with editing
WHY THAT MATTERS
People install software for things their system already does.
WHAT TO LEARN
The screenshot shortcut.
Why: it is the fastest way to show someone what you are seeing.
WHAT ELSE IS USEFUL
Capturing a region rather than the whole screen Recording the screen, for showing a process
WHAT A PLAIN TEXT EDITOR IS FOR
Anything that must contain no formatting: configuration, code, notes to paste elsewhere.
WHY NOT A WORD PROCESSOR
It inserts formatting and special characters that break things.
WHAT THE TASK MANAGER SHOWS
What is running, and what is consuming resources.
WHAT TO CHECK BEFORE INSTALLING ANYTHING
Whether your system already does it.
WHAT TO EXPLORE
The application list, once.