Hello, I just upgraded from Lightroom 4.4 to Lightroom 6. During the install process it didn't recognize that 4.4 was installed and likewise it didn't uninstall it. Can I safely uninstall Lightroom 4.4 without affecting my new install of Lightroom 6? I am using Windows 10 (Anniversary Update). In addition, when I started the install, it kept stating that a System Restart was pending, but nothing was pending. I even tried restarting a couple time and it still reported that a System Restart was pending.
Yes you can remove the Lightroom 4.4 version without any issue and it will not effect the Update version of Lightroom.