Boot Camp partition became unbootable after changing Paragon NTFS settings

Post the output of

sudo fdisk /dev/disk1

Can you post the output of

sudo dd if=/dev/rdisk1s3 count=1 2>/dev/null | hexdump -C

This will show us the first block of the NTFS header.

in macOS, are you able to see Windows files in the Bootcamp folder? If yes, install GPT Fdisk, which will let us derive the MBR from the GPT.

Was Paragon uninstalled? If yes, run a SMC and NVRAM Reset and test. Check System Preferences -> Startup Disks to for available selections.

MBRs are at disk level. You need to use disk1, not disk0.

Use sudo gdisk /dev/rdisk1 .

If you see a blinking cursor, then an MBR is unlikely the correct solution.

• Did you have any issues before Paragon was installed?
• Do you recall if your Windows installation was EFI or BIOS?
• Was your Windows installation created under Mojave?

DJ Callyman wrote:

Paragon was installed before I installed windows. And both ran together fine for months before I played with the settings I detailed in the original post (I don't know for sure if this is what caused the issue but I know it stopped working right after).

Paragon and Apple NTFS drivers cause conflicts. The Apple driver will refuse to show any partitions controlled by a third-party driver. If you relinquish control of the partition from Paragon, the partition will show up in Finder and System Preferences. There are other potential corruption issues with two drivers racing for the partition. Unless you have external disks which require NTFS read/write support, Paragon NTFS is not very useful by itself.

DJ Callyman wrote:

I'm sorry I don't recall and I'm not sure how to tell the difference.

The 2014 Mini supports both BIOS and EFI modes. The default is BIOS on pre-Mojave. On Mojave, it should use EFI. The difference is visible by looking at the Windows BCD.

DJ Callyman wrote:

I'm not sure - I think so. Even if not, I've been running Mojave for a while now with Windows continuing to run ok until recently.

But with the limitations introduced by Paragon. Did you install Windows using a USB2 Flash drive? If yes, do you still have the USB. It can be used to boot and check the underlying Windows file system.

There is a gap between GPT2 and GPT3, which GDisk does not show. There is no need to protect this gap, since it has no meaningful data. Type 'n' and continue.