Windows Troubleshooting
The Driver Won't Load on New Win 7 Installation (prior to SP1)
Most Sensoray drivers are digitally signed with an authenticode code signing certificate. Before SP1, Windows 7 only supported SHA-1 signed drivers. SHA-1 certificates and drivers, however, are now obsolete. Sensoray uses a SHA-256 code signing certificate. If Windows 7 64-bit (prior to SP1) is newly installed and Windows Updates is turned off, there may be an error about driver signing in the control panel for the device. Please note that new Win7 SP1 installations may require KB3033929 from Microsoft for SHA-256 support.
The recommended resolution is to turn on Windows Updates. Microsoft has a KB fix for SHA-256 support on Windows 7, but it requires SP1 to be installed. This should not be an issue because for security reasons, it is not recommended to run Windows 7 without updates. Below are some solutions to resolve the signing issue on original Windows 7 versions without disabling signed drivers (not recommended).
Option A
- Turn on Windows Updates
- Install all Updates
Option B
- Install Windows 7 SP1
- Apply KB3033929 manually (https://www.microsoft.com/en-us/download/details.aspx?id=46148) or from Windows Updates.