Windows Shortcuts:
Ctrl + C – Copy
Ctrl + X – Cut
Ctrl + V – Paste
Ctrl + Z – Undo
Ctrl + Y – Redo
Ctrl + A – Select All
Alt + Tab – Switch between open applications
Ctrl + Alt + Del – Open Task Manager
Windows + D – Show/Hide desktop
Windows + L – Lock your computer
Windows + E – Open File Explorer
Ctrl + Shift + Esc – Open Task Manager directly
Alt + F4 – Close active window/application
Windows + R – Open Run dialog box
Mac Shortcuts:
Command (⌘) + C – Copy
Command (⌘) + X – Cut
Command (⌘) + V – Paste
Command (⌘) + Z – Undo
Command (⌘) + Shift + Z – Redo
Command (⌘) + A – Select All
Command (⌘) + Tab – Switch between open applications
Command (⌘) + Q – Quit the active application
Command (⌘) + Option + Esc – Force quit an application
Command (⌘) + Space – Open Spotlight Search
Command (⌘) + H – Hide active window
Command (⌘) + W – Close the active window
Command (⌘) + M – Minimize the window
Browser Shortcuts:
Ctrl + T (Windows) / Command (⌘) + T (Mac) – Open a new tab
Ctrl + W (Windows) / Command (⌘) + W (Mac) – Close the current tab
Ctrl + Shift + T (Windows) / Command (⌘) + Shift + T (Mac) – Reopen the last closed tab
Ctrl + L (Windows) / Command (⌘) + L (Mac) – Focus the address bar
Ctrl + Tab – Switch to the next tab
Ctrl + Shift + Tab – Switch to the previous tab
Ctrl + F (Windows) / Command (⌘) + F (Mac) – Find text on a page
Ctrl + D (Windows) / Command (⌘) + D (Mac)