JAM_989,
I believe your suggestions improved some other issues, but the main problem remains...
- Press power button for 30 seconds.
- Press volume-up button and power button together for 15 seconds.
- Release the buttons and wait 10 seconds.
- Start the Surface normally by pressing the power button.
I performed 1-3 precisely by the clock. Without pressing #4, the system started itself in "Surface UEFI". Everything looked reasonable so I tapped Exit. It restarted normally, but much faster than it has for weeks - since about the "November update".
The Battery panel now sits solidly on "Fully charged", no more "Not Charging" or "Calculating" (so far...) Both batteries remain at "100%" instead of 98 or 99, but they both cycle between "fully charged" and "in use" - and close any Taskbar Previews when they
change. So I continued with your suggestions:
- Open Device Manager
- Expand Batteries
- Right-click on the batteries and press uninstall. Do not tick the box to uninstall driver software.
- Restart Surface Book
After the restart I checked Device Manager again, and each battery said a restart was needed "to install hardware changes". So I restarted yet again, and now they seem content.
Unfortunately, both batteries still cycle between full and in-use, and zap my Previews as frequently as before.
So the first two-button shutdown has cured the strange and contradictory messages I used to see in the Battery panel, and cut cold boot time at least in half. Welcome improvements. But the ancient problem of battery manager actions closing Taskbar Previews
remains.
Tried hiding the Battery tray icon, didn't help. Why does changing its displayed information grab focus away from my cursor? If I keep the cursor moving over the Taskbar icon, the Previews jump right back after disappearing for a second, but that is hardly
a solution.
There is another maddening focus/visibility issue on this machine. If I receive an error doing a file copy in Explorer, the error dialog appears at the very bottom of the window stack, instead of at the top. And there is no audio alert, no way to know there
was a reason for the failed action. To see the options the dialog usually presents, I must manually close each window above the dialog. And this always seems to happen when there are a dozen or more...
I'm also curious if this battery issue might be related to my other nagging Surface Book problem:
http://answers.microsoft.com/thread/1fd217b1-82c6-44df-955f-4ab142b2ec89
When that problem happens, I see System, PID 4, with the thread "ACPI.sys+0x1f9c0" using all of the CPU. When the problem is not happening, that thread exists but typically shows no CPU usage. I guess that's a stretch, but when I was reinstalling the battery
drivers, there were lots of ACPI items shown... I'll be watching to see if it changes.