Out of the box, Windows 7 only supports SHA-1 digital signatures. However, SimVisuals uses a SHA-2 for it's digital signatures. To enable support for SHA-2 on Windows 7 please see the Microsoft Security Advisory 3033929.
The current recommended workaround to driver signing issues on Windows 10 is to disable driver signature enforcement. The instructions below provide a means of doing this that is preserved between reboots.
- Open an instance of Command Prompt as Administrator
- Issue the following command:
bcdedit.exe /set nointegritychecks on
- Restart Windows
Reversing the above workaround is recommended when you install the fixed version of SimVisuals is released in the near future. In order to reverse the workaround, complete the above steps replacing the on in the command in step 2 with off:
bcdedit.exe /set nointegritychecks off