Ctrl + X

Cut the selected item.

Ctrl + C (or Ctrl + Insert)

Copy the selected item.

Ctrl + V (or Shift + Insert)

Paste the selected item.

Ctrl + Z

Undo an action.

Alt + Tab

Switch between open apps.

Alt + F4

Close the active item, or exit the active app.

Windows logo key  + L

Lock your PC.

Windows logo key  + D

Display and hide the desktop.

Ctrl + A

Select all items in a document or window.

Ctrl + D (or Delete)

Delete the selected item and move it to the Recycle Bin.

Ctrl + E

Open Search (in most apps).

Ctrl + R (or F5)

Refresh the active window.

Ctrl + Y

Redo an action.

Ctrl + Right arrow

Move the cursor to the beginning of the next word.

Ctrl + Left arrow

Move the cursor to the beginning of the previous word.

Ctrl + Down arrow

Move the cursor to the beginning of the next paragraph.

Ctrl + Up arrow

Move the cursor to the beginning of the previous paragraph.