Wondering if anyone else is having any of these issues. I just upgraded my main PC to Windows 10 and Lightroom is acting weird. It is not recording my ratings of photos for easy selection anymore and it won't let me copy settings. These are just the first observations I've had. Could it be a problem with the interface with the new Windows?
If you're using Lightroom 6 or CC, have you definitely updated to the latest release of Lightroom? The last release had fixes that were specific to Windows 10.