Standard disclaimer: there is no official support for W-10 on 6-series (and previous) boards and graphics preceding Ivy Bridge.
A number of posts, especially from Scott, have noted that chipset, RST, and LAN device drivers for W-10 can be found at intel.com. None of those posts mentioned ME drivers, however. As an educational exercise I downloaded a W-10 64-bit disc from Microsoft and tried to create a working system on a DH67BL (BIOS of 0132), i5-2500 PC, and spare WDC drive. I obtained chipset and LAN drivers from Intel. I obtained an audio driver from Realtek. I obtained a graphics driver from NVIDIA, as this system has a graphics card, allowing me to avoid the dreaded pre-Ivy-Bridge graphics driver situation. I used an ME driver from W-8, 8.1.0.1248, because that was the latest available (there's also 8.1.0.1252, but DH67BL is not listed for it).
After I installed W-10, chipset driver, and Realtek driver, and rebooted, Device Manager indicated PCI Simple Communications Controller, so Microsoft did not supply an ME driver. I installed 8.1.0.1248 and rebooted, only to see KMODE_EXCEPTION_NOT_HANDLED which usually refers to drivers, though W-10 composed itself and was able to proceed to a normal logon (Event Viewer contains a Critical Event 41 kernal-power at the same time without further explanation). I ran the latest IPDT, but it found nothing amiss. Control Panel showed ME to be installed. Device Manager showed no errors.
I rooted around in Downloads and took the ME with the largest number, 9.5.15.1730, that wasn't NUC or Compute Stick. I uninstalled 8.1.0.1248 and installed 9.5.15.1730. A reboot showed no errors. Control Panel showed ME to be installed. Device Manager showed no errors. Maybe this is the holy grail. If anyone knows a way to stress-test ME, please let me know.
I found another ME -- "Intel® Management Engine (Intel® ME) software for systems based on 3rd generation Intel® Processors or above" -- v-11.0.2.1002 for allOS including W-10. If my processor was Ivy Bridge, this would probably work. I'll keep this one for future reference.
But then again. I uninstalled 9.5.15.1730 and installed 11.0.2.1002, expecting it to chide me about my lesser processor. But it installed with no errors, though it only had one line of things it installed instead of the previous four (I think). No BSOD. IPDT displayed no errors. Device Manager also displayed no errors. So is 11.0.2.1002 really a 2nd Generation or above, but the Sandy Bridge part is it's-okay-but (wink-wink-nudge-nudge) we-cannot-tell-you-that-due-to-that-whole-qualification-schtick?