Top 30 most useful shortcuts in windows operating system?

On Windows 10, keyboard shortcuts provide a quick way to navigate and operate the experience and features using a single press of one or multiple keys, which otherwise will take several clicks and more time to accomplish using the mouse.

These are the essential keyboard shortcuts that every Windows user should know:

Keyboard shortcutAction
Ctrl+ASelect all items in a document or window.
Ctrl+CCopies selected text or item.
Ctrl+X Cuts selected text or item.
Ctrl+VPastes text or item on clipboard to your cursor location or designated file location.
Ctrl+DDelete selected text or item.
Ctrl+ZUndo something.
Alt+F4Close active window. (If no active window is present, then a shutdown box appears.)
Ctrl+YRedo something.
Ctrl+SSave a document.
Ctrl+PPrint a document.
EscClose current task.
Ctrl+Shift+EscOpens the task manager.
Ctrl+plus(+)Zoom in on a large number of items, like apps pinned to the screen.
Ctrl+minus(-)Zoom out on a large number of items, like apps pinned to the screen.
Alt+TabSwitch between open apps
Windows logo key+TabCycle through open apps (except desktop apps in Windows 8)
Shift + DeleteDelete the selected item without moving it to the Recycle Bin first
Windows logo key + L Lock your PC or switch users
Windows logo key + M Minimize all windows
Windows logo key + Shift + M  Restore minimized windows on the desktop
Ctrl + Alt with any arrow key  Rotate the entire screen in direction of the arrow key. Helpful for viewing photos or videos that aren’t right-side up.
Windows logo key + A Access the Action Center menu where you can view your notifications and access commonly used settings like Wi-Fi and Bluetooth
Windows logo key + I Access Windows Settings
Windows logo key + COpen Cortana in listening mode 
Windows logo key + SSearch for any file or an app installed on your computer
Windows logo key + EOpen file Explorer.
Windows logo key+DDisplay and hide the desktop.
Windows logo key+VOpen Clipboard bin.
Windows logo key + Left arrow keySnap app or window left.
Windows logo key + Right arrow keySnap app or window right.
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