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Quick advice. If you are using Windows 7 on a Tablet PC, you can quickly change the orientation of Windows. All you have to do is use the following keyboard shortcuts.
Changing the display orientation in the Windows Tablet 7
Use this key combination to see how the display orientation changes:
You can also try it on your laptop to see how it works. The mouse navigation orientation also changes.
If you notice that the Windows taskbar remains in its previous position, simply make sure that your cursor is not held on the taskbar while holding down the mouse button.
I hope you like this little but useful tip!