HELP ME TOO!
I am having somewhat the same issue. I went to update McAfee on my server and it failed. So I went to uninstall and the uninstall wouldn't finish. Then I downloaded the McAfee uninstaller and it too failed, giving me the "blframework.dll is missing". I am unable to complete the uninstall of Endpoint 10 Threat Prevention, nor am I able to reinstall a new version.
I hope someone has an answer because there's not much out there on the web that sounds like a good solution.
Well.... I had to give up and put the laptop back in to service for a minute.
My only option I was left with was to factory reset/reinstall the device, but I wasn't prepared for that just yet and the laptop was urgently needed.
As a side note though, I've not had issues running Endpoint 10 on Windows 10, some instances have worked far better by uninstalling any Endpoint protection before proceeding with the upgrade to Windows 10 and then reinstalling afterwards.
Even to this day, I find computers the strangest of creatures, you can have 20 identical machines, yet one will, for whatever reason, have a hissy fit!