1. Just type in the name of the website in the address bar on a browser and press Ctrl+Enter to add the 'www.' and '.com', prefix and suffix automatically.
2. Press the Windows Key+F to quickly open the search bar to search for files or folders.
3. Press the Windows key, and U twice in quick succession to shut down the computer.
4. Use Ctrl+K to add a hyperlink to a bit of selected text.
5. You can undo an Undo by pressing Ctrl+Y. Simple
6. Squeeze down the Alt key and press Esc to toggle between windows and applications in the order that they were opened.
7. Press Alt+Space Bar to quickly open the menu tab for any active window.
8. Use Shift+Delete to permanently delete a file instead of sending it to the Recycle Bin first.
9. You can lock your computer directly by using the Windows Key+L short cut.
10. Hold Shift while inserting a USB device or CD to bypass the autorun.
11. You don't have to copy the whole screen in a screen shot any more.
Use the Alt+Print Screen short key to take a screenshot of the current active window
12. While Alt+Tab will let you toggle between windows, usingCtrl+Tab lets you navigate open tabs within a browser quickly.
13. Click on a tab with the middle button on your mouse to close it directly.
14. Instead of using Ctrl+Alt+Delete, use Ctrl+Shift+Esc to directly open the Task Manager.
15. While Alt+F4 will close an open window, Ctrl+F4 will close an open tab.
16. Ctrl+P will directly open up your print options tab.
17. Press Ctrl+D to directly bookmark an open page on your browser.
18. Pressing F7 on a PC or Mac does a quick spell check.
19. The command for creating something new is Ctrl+N
So, if it's a browser, the command will open a new window, and for word, image editing or any other process likewise, the command will open a new page.