Windows No Longer Boots

My Boot Runner dual boot worked fine for a long time, but I can no longer boot to Windows 10. My OSX boot disc is an external SSD:

Volume name : MacBoot
Volume type : Physical Volume
BSD device node : disk5s2
Mount point : /
File system : Mac OS Extended (Journaled)
Connection : SATA
Device tree path : IODeviceTree:/PCI0@0/IOU2@1/I2PS@0/PPB2@2/PXS3@0/PRT1@1/PMP@0
Writable : Yes
Is case-sensitive : No
File system UUID : 04407390-D93D-3C5C-8041-F29B7C0F870A
Volume capacity : 999,345,127,424
Available space (Purgeable + Free) : 616,787,867,913
Purgeable space : 1,213,171,977
Free space : 615,574,695,936
Used space : 382,557,259,511
File count : 1,172,535
Owners enabled : Yes
Is encrypted : No
System Integrity Protection supported : Yes
Can be verified : Yes
Can be repaired : Yes
Bootable : Yes
Journaled : Yes
Disk number : 5
Partition number : 2
Media name :
Media type : Generic
Ejectable : Yes
Solid state : Yes
Parent disks : disk5

And my Windows boot is on a seperate SSD. Here is the Disk Utility report from the OSX boot:
Volume type : Physical Device
BSD device node : disk4
Connection : SATA
Device tree path : IODeviceTree:/PCI0@0/SATA@1F,2/PRT1@1/PMP@0
Writable : No
Is case-sensitive : No
Volume capacity : 512,110,190,592
Available space (Purgeable + Free) : 0
Purgeable space : 0
Free space : 0
Used space : 512,110,190,592
Owners enabled : No
Is encrypted : No
Can be verified : No
Can be repaired : No
Bootable : No
Journaled : No
Disk number : 4
Media name : Samsung SSD 850 PRO 512GB Media
Media type : Generic
Ejectable : No
Location : “Lower”
Solid state : Yes
S.M.A.R.T. status : Verified

Any idea why it has ceased to work?

Do I need to provide additional information?

Is it possible that SIP is no longer partially enabled? What do you get when you run “csrutil status” in Terminal?

tim

System Integrity Protection status: disabled.

I found this in Device Configuration Profiles:

Device Configuration Profiles:

MCXToProfile: com.twocanoes.bootrunner:

Description: Included custom settings:
com.twocanoes.bootrunner
Organization:
Installation Date: Sunday, April 14, 2019 at 9:01:34 PM Eastern Daylight Time (2019-04-15 01:01:34 +0000)
Identifier: com.twocanoes.bootrunnertest
UUID: 5751d76e-649d-4a7b-be1f-0fd0dcb25c45
Version: 1
Verification State: Unsigned
Removal Disallowed: Yes

com.apple.ManagedClient.preferences:

Identifier: MCXToProfile.5751d76e-649d-4a7b-be1f-0fd0dcb25c45.alacarte.customsettings.a8ac802d-b6af-46a7-b7da-303ccc300f2a
UUID: a8ac802d-b6af-46a7-b7da-303ccc300f2a
Version: 1
Payload Data: {
PayloadContent = {
“com.twocanoes.bootrunner” = {
Forced = (
{
“mcx_preference_settings” = {
AutoSelectTimeout = 8;
AutomaticallySelectVolume = disk2s2;
DiskLabelFontSize = 13;
LimitDays = (
1,
1,
1,
1,
1,
1,
1
);
LimitTimes = 0;
MarqueeOffScreenTime = “2.0”;
MarqueeOnScreenTime = “10.0”;
MarqueeTextPosition = 0;
ScrollMarquee = 1;
ShowPopover = 1;
ShowPopoverOnStart = 1;
ShowShutdownButton = 1;
};
}
);
};
};
}

??? Any ideas? Additional information needed?

I realize that I can go into System Settings and permanently change the boot drive to Win 10 (my Os’s are on two seperate SSD’s). I do not, however, know how to change it back once (or if) I am able to boot from my Win 10 drive. I’m not quite ready to dump OSX - but I am getting close!

You can always hold the option key down when the Mac is starting up and choose either Windows or macOS.

tim

The option key held down on reboot did not work. OSX starts via Bootrunner.

When you hold down option on startup, it should show least the MacOS volume. Does it show that?

tim