atom686 wrote:Could launching that driver cause a problem? I have no idea why I got Hardened Error, it never happened on another PC. Those are two exactly same laptops with different windows installations.
It is normal behavior of VBox. When TDL loaded driver it firstly unloaded current VboxDrv.sys. VBoxDrv.sys normally loaded at Windows startup AFAIK via it service entry or loaded during VirtualBox installation process. Then you started VirtualBox.exe and it checked if vboxdrv.sys loaded - if you are running under UAC then VirtualBox.exe is running at Medium integrity level, which disallow VirtualBox.exe load drivers. To reload vboxdrv you can use net/sc or simple "Run As Administrator" for VirtualBox.exe then close it and run normally. I'll recheck patch for 5.1.2 and let you know results.
Do you installed anything else on this system? Your screenshot indicates two graphic cards.
Edit:
Ok I rechecked patch, all offsets are correct. Exact location of this patch is in vgaR3Construct from VBox/Devices/Graphics/DevVGA.cpp
Code: Select all /* The PCI devices configuration. */
PCIDevSetVendorId( &pThis->Dev, 0x80ee); /* PCI vendor, just a free bogus value */
PCIDevSetDeviceId( &pThis->Dev, 0xbeef);
Please post screenshot of Windows Device Manager (My Computer -> Properties -> Device Manager -> Display Adapters). Also try to remove this 80EE/BEEF entry with regedit. Unsure how you managed to get it however. The only reasonable explanation is that you loaded Windows 1 time before loading monitoring driver and applying patch.