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Update from 1511 to 1607 failing
Win 10 Pro i7 desktop (upgraded from 8.1), 1511 working fine. Tried four times this week to go from 1511 to 1607 and failed four times. Well, actually the first time via USB setup it succeeded, but when a day later I needed to boot into Safe Mode, startup ran on and on (four blue Windows screen, circling dots). I was eventually able to use diagnosis and repair off a USB stick to get into Safe Mode, but starting back to normal mode just ran on and on. After that, I've used the Windows Update method and each time during installation it gets to a point where start up runs on indefinitely. I've even let it go all night to be sure. Just a little bit ago, for example, it got to about 77% installed, restarted a third time and it happened again (waited a good 30 minutes). I've tried diagnosis and repair, but very soon there's a flash and the screen goes blank (black) - and stays that way. Someone elsewhere suggested that updating the Intel driver had solved it for him (Device Mgr > System), and mine did show need of an update, but that didn't do it for me. sfc /scannow did find some errors, but fixing those hasn't solved it either. I've also turned off (but not uninstalled) MBAM and Windows Defender/Firewall before starting. In the end, each time I've had to use a system image from an external SSD to go back to 1511.
Any ideas? Thanks,
Last edited by highstream; 14 Jan 2017 at 01:29.