Hi there! My name is***** am a computer professional with over 15 years of experience with both Mac and Windows computers, phones, tablets, and printers. It would be my pleasure to assist you with this. I'll need to ask a few question in order to fully understand the problem. Is there a possibility that there is something lodged behind the spacebar key, or that something sticky was spilled on the keyboard? Let's try taking a qtip dippped in alcohol and cleaning around the key as best you can without popping the key off. Please try that and let me know the results. Also, if there is any further insormtaion that you can provide, please let me know.
Sure we can continue then. I will look forward to hearing from you.