UPDATE ... UPDATE ...UPDATE ..... May have nailed the cause of the update failures to Charter Cable's anti-virus. Among other changes Tuesday was uninstalling Charter's anti-virus. The next attempt to upate above 10074 succeeded. Today, I started a re-install of Charter's app and it caused the OS to crash and the failure message on a lite blue screen included a splash of white streaks, identical to all earlier fails to update to build 10122. Therefore, my thought now is that the Charter Cable app is not compatible with Win 10 beyond build 10074.
Now, the latest build works again following a reboot and the anti-virus is back to Windows Defender.
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Below, the issue that inspired the original post:
After the automatic reinstall of 10074 after the failed update the popup reads 0x1900101 - 0x4000D.
Plug-in card GPU is AMD HD6450 running two of the three displays. The other is on the Intel CPU's 4000 GPU. At the point of failure notification two displays turn on with a blue background and one of them has a half-dozen horizontal white streaks. So, at that point there seems to be an obvious GPU issue. The displays are eMachines 900x1440.
All previous Win 10 builds since the 1st have been trouble-free without upgrade hiccups. Win 10 works very well as the production OS since about November. Some of the wide variety of apps are 15 years old and run better than ever before on this Gigabyte GA-Z77X-D3H main board.
The graphics driver is currently AMD's 15.200.1023.3. Several earlier versions work as well with the HD 6450 and Intel i5.
Once the bugs are squashed, Win 10, it appears, will continue to be my new best friend. But, I'm dying with the wait to see 10125! I'll take 10122 and two Aspirin in the meantime. Rufus is getting plenty of attention and use.