Hi diceman725, these articles provide some recommendations.
If issue persists, would you like to provide more details and brief history of your system?
What is your operating system and system model?
The error 52 could mean that the driver is corrupted, was the Bluetooth feature working with Intel drivers before? If yes, what changed?
You may also try with the drivers in zip file format or the ones provided by your system manufacturer.
Hi Joe - thanks for the response. I hadnt seen the compatibility list but that wasn't the problem. The others I've tried. No luck. Now, I did turn off digital signature verification (I know, not a preferred practice) and it all installed. So, it's functional right now.
History - I've got a Samsung Ativ Book 9 Plus running Windows 7. It was running Win 8 when I bought it, so my Windows 7 was a clean install. I did have a number of problems getting BT to work with the Intel drivers, but I was able to stabilize on the Windows adapter. I've only tried the Intel drivers again because the Windows adapter doesn't support sound.
It's not clear why the digital signature fails when I try to install. All the signatures appear valid when I dig into them. Like I said, it's functional but I don't like the solution.
Any other thoughts?