Signature verification feature in 64 bit versions of Microsoft’s Windows 8 and 8.1 sometimes become a mess when you have to install some drivers and the program compatibility assistant just pops up telling you that you cannot install this driver on this computer or it blocks the installation of the driver and required you to check the digital signature on the developer’s end.
Basically, Signature Verification contains an Electronic-Fingerprint that determines whether the driver is developed by the same manufacturer as that of the device’s and also whether the driver
has been modified or not (it’s digitally signed or not). The only
purpose of Driver Signature Verification is to improve the security of
the hardware of the device so that invalid or malfunctioned driver does
not cause any harm. The reason we’re here today is already explained
above, but needs a little more light, so to make it clear I’ll just
share my very own experience.