N9 isn't recognized by Windows 7 pc

Hi, I'm new to the N9, have had the tablet about a week. I have tried connecting it to my windows 7 Pc and the N9 isn't recognized. I have tried all the basics, all drivers are current, set tablet to mtp, and not found. I have connected to a friend's Windows 10 PC and the N9 is found immediately. My N9 is a wifi only device, non rooted. I have 2 other Android devices that my W7 PC finds with no issue. Anyone else experience this, and or have any suggestions on how to fix this issue ? Not looking to root at this point. Any help and guidance would be greatly appreciated

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