How to load your unsigned driver and hide all traces after that

About TESTSIGNING mode: https://docs.microsoft.com/en-us/windows-hardware/drivers/install/the-testsigning-boot-configuration-option

1. Run cmd.exe with administrator rights and enter: bcdedit.exe /set TESTSIGNING ON
2. Reboot your PC
3. In user-mode app load CI.dll with LoadLibraryEx and get kernel address of g_CiOptions flag
4. Create shared memory buffer with information for kernel driver
5. Load the driver to kernel with service or ZwLoadDriver
6. Driver patch g_CiOptions to off TESTSIGNING mode
7. In your user-mode app, run bcdedit.exe /set TESTSIGNING OFF
8. Clear traces in registry

Warning: Windows implemented Kernel Patch Protection(KPP) aka PatchGuard after Windows 7

Patching kernel flags may crash your system(BSOD)!