Updating your PC to the Windows 10 May 2019 update -- a major upgrade -- isn't necessarily click-and-go. I have a bunch of laptops that I'm in the process of (slowly) updating to the May 1903 update.
Microsoft says that computers with Realtek or Qualcomm Bluetooth radios might have issues discovering and connecting to Bluetooth devices after installing or updating to Windows 10 version 1903 ...
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