Hi,
I'm trying to determine the actual minimum Windows version currently supported by GFAC.
I'm running:
Windows 10 Enterprise LTSC 2019
Version 1809
OS Build 17763.9245
64-bit
APB currently fails with GFAC Error 2427.
I investigated the GFAC installation and found the following:
- GFACSys is correctly registered as a Windows file-system minifilter.
- The GFAC kernel driver is digitally signed by Little Orbit Inc.
- The driver file is present and appears to be the correct installed driver.
- Starting the GFAC driver manually returns Windows error 127.
- Windows Event Viewer reports that GFACSys failed to start because "The specified procedure could not be found."
- GFAC itself reports Error 2427.
I also inspected the actual GFAC_Sys_x64.sys driver binary.
The driver imports this function directly from ntoskrnl.exe:
ExAllocatePool2
Microsoft documents ExAllocatePool2 as being supported starting with Windows 10 version 2004 (build 19041).
This makes me suspect that the current GFAC kernel driver requires Windows 10 version 2004 or newer, and therefore cannot load on Windows 10 1809 / LTSC 2019.
Could someone from the GFAC/GamersFirst team confirm this?
Specifically:
1. What is the minimum supported Windows 10 version/build for the current GFAC kernel driver?
2. Is Windows 10 version 2004 (build 19041) actually the minimum requirement?
3. Does GFAC have an older driver/build that still supports Windows 10 1809 / LTSC 2019?
4. If an older compatible GFAC version exists, is there an official way to obtain it?
I understand that Windows 10 1809 is an older release, but I'm specifically trying to determine whether GFAC 2427 is caused by the OS being unsupported or by another issue.
Any information about the minimum supported Windows build would be greatly appreciated.
Thank you.
this was redacted using ai that helped me go trought 3 hrs of trouble shooting reading all the minidumps and logs.
