1. Ctrl + C - Copy 2. Ctrl + V - Paste 3. Ctrl + X - Cut 4. Ctrl + Z - Undo 5. Ctrl + A - Select all 6. Ctrl + F - Find 7. Ctrl + S - Save 8. Ctrl + N - New 9. Ctrl + O - Open 10. Alt + Tab - Switch between open windows 11. Windows key + D - Show desktop 12. Windows key + E - Open File Explorer 13. Windows key + R - Open Run command 14. Windows key + L - Lock computer 15. Ctrl + Alt + Delete - Open Task Manager 16. F5 - Refresh webpage or document 17. Ctrl + P - Print 18. Ctrl + Shift + Esc - Open Task Manager directly 19. Ctrl + Shift + T - Reopen last closed tab in browser 20. Ctrl + W - Close current tab in browser 21. Ctrl + Shift + N - Create new folder 22. Ctrl + Shift + S - Save as 23. Ctrl + Shift + V - Paste special 24. Ctrl + Shift + C - Copy formatting 25. Ctrl + Shift + X - Cut formatting 26. Ctrl + Shift + Z - Redo 27. Ctrl + Shift + A - Select all text in document 28. Ctrl + Alt + F - Find and replace 29. Ctrl + Alt + T - Open new tab in browser 30. Ctrl + Alt + Del ...