Multiplicity Sticking keys

Hello everybody,

I am wondering If only I have a problem with randomly Sticky WINKEY.

From time to time, even on a brand new PC, when I am trying to make something on with the keyboard, it behaves like I am pushing the WINKEY. For example, trying to type pass with the letter "D," the computer acts like pressing WINKEY+D, which hides all windows.

Wors scenario is when I am hitting the L button, the computer locks itself.  

Until I am locking the computer and unlocking again or Unloading the multiplicity from the taskbar, this happens even I don't have a slave computer connected.

I've reinstalled the Software \ Windows \ for now already changed even the PC, but the behavior is the same exactly.

Also, from time to time, when I am moving the mouse to slave on the master appear the START like when I moved the mouse to the slave parallelly I clicked the WINKEY, same when I am moving the mouse back on the slave START appears like I clicked the WINKEY.

I am repeating, fixing this only with Unloading the Multiplicity or Locking and Unlocking the computer.

Does anyone know how to fix this? I already checked another solution, but I am like the multiplicity and don't want to change it.

Thanks in Advanced