windows - Is a digital signature neccessary to properly install all INF files? -

windows - Is a digital signature neccessary to properly install all INF files? -

i trying install usb composite device build on windows 7(32bit & 64bit) , windows8/8.1(32bit & 64bit).

the device composes of mass-storage , cdc serial port device. have provided inf file create windows recognize main composite device. 1 time recognized, provide inf cdc serial device. mass-storage part functions without need of inf file.

now these inf files uses drivers normal default windows drivers.(usbccgp.sys, usbser.sys) when using these "default" drivers , not changing in them, still need digital signature install device? there anyway write inf bypass error?

thanks

signatures enforced when installing drivers in 64-bit windows. drivers won't work without beingness signed. , 1 time have proper certificate (note not every code signing certificate work), can sign both driver , cat file (if used) certificate.

windows driver digital-signature inf