It’s been a week since my last post. Just a report. I’ve spent most of the week messing with my computer. I finally got the Restore Disks to work and restored my computer to factory settings, tested SketchUp components in Windows 8.1 Pro (factory default) and it worked as advertised (<1 sec). Upgrade to Windows 10 Pro and the component creation was back to 8 seconds.
Also the problems I had with the Extensions Store Another first for me!, has not gone away.