Click on the Advanced tab and click Settings in the Performance section , then find and uncheck the Show shadows under windows option .
Click OK to save it.
It's interesting now that you can now ' pin ' the Recycle Bin to the Taskbar easily in Windows 10 Technical Preview with . Start Menu . The method is quite simple as follows.
Right-click the Recycle Bin icon on the desktop and select the Pin to Start command
Then go to the Start Menu , find the Recycle Bin , right-click it and select the Pin to taskbar command.
It's done
Similar to Windows 7, users can adjust Windows 10 Technical Preview's list of applications in the Start Menu using simple drag-and-drop methods. And you can also add or remove the presence of system folders by doing the following.
Right-click on Taskbar and select Properties . The Taskbar Properties dialog box will appear, select the Start Menu tab and navigate to the Customize button.
Now look at the Pin to Start list and proceed to mark or unmark the folders you want to appear in Start Menu, then click OK to save it.
Pretty simple, isn't it?