Dear Janaki
35 rows Microsoft Wireless Keyboard 800 Driver for Windows 7 32 bit, Windows 7 64 bit, Windows. Aug 09, 2012 The Microsoft Desktop 800 Wireless Keyboard and Mouse works best with on systems that have Windows 7, Vista, XP and Mac OS X v10.4. The batteries may last up to 8 months basis the usage of an individual, however, the life of the batteries can.
Its a very strange one that the keyboard icon itself is missing. Can you try the below steps to see.
Microsoft Wireless Keyboard 800 Driver
Click the apple icon upper left screen / Shut down.
Microsoft Wireless Desktop 800 Driver
Disconnect everything from the mac not the power
Once the mac is off, please hold down SHIFT/CONTROL/OPTION and then press the power button. You have to hold all these keys including the power button for 6 seconds and then release.
After this also the computer should be in off mode only.
Now you press the power button and pray to GOD and see your system preference to see if the keyboard icon is over there or not.
This should work in a normal case but lets see if there are any other methods if this doesn't work.
Rgds
Shanker
Feb 9, 2016 9:07 PM