I've written a C program in Windows that uses some precompiled files from WinDivert. My program uses a .dll from WinDivert and some of the functions in the .dll install the WinDivert.sys driver. There are also a few more files from WinDivert that are a part of this (a .lib, a .inf, and another .dll).
The problem is that on one of my computers (Windows 8.1 64 bit), everything works perfectly. But, when I try to use the program on my laptop (Windows 8.1 64), my friend's laptop (Windows 7 64), or another Windows 7 64 desktop, something blocks the installation of the driver. I'm unsure what is blocking it or how to stop it from being blocked because on all computers:
+I'm running on an admin profile
+Running the program in admin command prompt
+Tried disabling firewall, anti virus, etc (although it runs fine with these on for the computer that works)
+As far as I can tell, all my security settings are the same
+Note: the driver does have a valid signature.
Why does the driver install perfectly on one computer, but not on the other three? What could be issue?
