How do I undo and redo?

Mac: Cmd+Z (undo), Cmd+Shift+Z (redo). Windows: Ctrl+Z (undo), Ctrl+Y (redo).

How do I take a screenshot?

Mac: Cmd+Shift+3/4. Windows: Win+Shift+S. iPhone: Side+Volume Up.

How do I lock your device?

Mac: Ctrl+Cmd+Q. Windows: Win+L. iPhone: Press side button.

Essential Skills

Beginner

1 min read 6 stepsFebruary 2, 2026Verified February 2026

Essential Keyboard Shortcuts for Any Device

The most useful keyboard shortcuts that work across iPhone, Mac, Windows, and more.

In this guide (6 steps):

1.Copy, Cut, Paste
2.Undo and Redo
3.Find text
4.Switch apps
5.Take a screenshot
6.Lock your device

Copy, Cut, Paste

~15s

Mac: ⌘+C/X/V. Windows: Ctrl+C/X/V. The most used shortcuts on any computer.

Undo and Redo

~15s

Mac: ⌘+Z (undo), ⌘+Shift+Z (redo). Windows: Ctrl+Z (undo), Ctrl+Y (redo).

Find text

~15s

Mac: ⌘+F. Windows: Ctrl+F. Works in browsers, documents, and most apps.

Switch apps

~15s

Mac: ⌘+Tab. Windows: Alt+Tab. Quickly jump between open applications.

Take a screenshot

~15s

Mac: ⌘+Shift+3/4. Windows: ⊞ Win+Shift+S. iPhone: Side+Volume Up.

Lock your device

~15s

Mac: Ctrl+⌘+Q. Windows: ⊞ Win+L. iPhone: Press side button.

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Official Resources

GCFGlobal — Free Digital Skills AARP Technology Tips Senior Planet

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