I use a Wireless Mouse & Wireless Keyboard.. The Mouse is performing as it should , But the Wireless Keyboard is not Responding.. I tried putting fresh batteries in, Nothing yet.. The Keyboard is from Microsoft.. Any ideas? Thanks

Try putting the usb dongle in another slot. If using the software that came with the keyboard and mouse try uninstalling and then reinstall.

Is it a Wfi of Bluetooth?

Wifi:
Some wireless keyboards and mice have a "Connect / Sync" button that have top be pressed on the Dongle and Keyboard and the same time. Some you have to hold for 3 seconds.

Bluetooth:
You have to unpair the keyboard and start afresh...


Hope this helps.
Grant