|This sounds like Sticky Keys, Toggle Keys, or Filter Keys. Go to the start menu and type "Change how your keyboard works". There should be only one result, click on it.|
I'm assuming you don't use these features, so:
Un-check "Turn on Sticky Keys"
Un-check "Turn on Toggle Keys"
Un-check "Turn on Filter Keys"
Then click "Set up Sticky Keys" and un-check "Turn on Sticky Keys when SHIFT if pressed five times". Click the back button in the top right and un-check "Turn on Toggle Keys by holding down the NUM LOCK key for 5 seconds". Next go to "Set up Filter Keys" and un-check "Turn on Filter Keys when right SHIFT is pressed for 8 seconds".
That should rid you of your beeping problems. Let me know if this doesn't work!