6 years, 11 months ago.

Missing digital signature

Hi! I get a strange error message regarding a missing digital signature on the driver (inf - file), when installing in Windows (windows 8 64bit). Anyone with the same problem and a solution?

Question relating to:

Same problem. This site http://mbed.org/handbook/USBSerial says to except the error, but in Windows 8.1 you do not have that option, and no driver is installed. Any solutions?

posted by Jeff Johnson 06 Jan 2014

Follow these instructions to make this works. It is probably the only solution and it works. You need to remember steps before you begin.

Go to Start - Then Command Prompt Enter command "shutdown /r /o /f /t 00" Click the "OK" button (if required-system may restart straight away) System will restart to a "Choose an (option" screen) Then select "Troubleshoot" from "Choose an option" screen Then select "Advanced options" from "Troubleshoot" screen Then select "Windows Startup Settings" from "Advanced options" screen Click "Restart" button System will restart to "Advanced Boot Options" screen Select "Disable Driver Signature Enforcement" Restart & install drivers...

Credits to: http://answers.microsoft.com/en-us/windows/forum/windows_8-hardware/how-to-install-a-driver-that-does-not-contain/7c3f299b-3483-4c96-8c44-87c7451af222

posted by Milan Stefko 07 Aug 2014

1 Answer

6 years ago.

Follow these instructions to make this works. It is probably the only solution and it works. You need to remember steps before you begin.

Go to Start - Then Command Prompt Enter command "shutdown /r /o /f /t 00" Click the "OK" button (if required-system may restart straight away) System will restart to a "Choose an (option" screen) Then select "Troubleshoot" from "Choose an option" screen Then select "Advanced options" from "Troubleshoot" screen Then select "Windows Startup Settings" from "Advanced options" screen Click "Restart" button System will restart to "Advanced Boot Options" screen Select "Disable Driver Signature Enforcement" Restart & install drivers...

Credits to: http://answers.microsoft.com/en-us/windows/forum/windows_8-hardware/how-to-install-a-driver-that-does-not-contain/7c3f299b-3483-4c96-8c44-87c7451af222