May have been asked and answered before, but I can't find it. Every Windows 10 clean installation I have worked on, whether it's a manufacturers OEM recovery clean install, or a MS iso clean install, it has this issue. Whenever that Windows 10 (hdd or ssd) is connected to a Windows 7 live system it is marked dirty, chkdsk must run, and it always finds and fixes file errors...first connection only, then it's 'clean'. FYI, I am simply connecting it to image Windows 10 for later use/install. If I connect the hard drive internally to a desktop 7 PC, chkdsk runs at bootup, if connected via USB to a live system chkdsk wants to scan the Windows 10 disk immediately after the hard drive driver is installed. Why the chkdsk file errors???