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Signed driver is not being installed

Last response: in Windows 7
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January 31, 2012 2:56:14 AM

Hello,

I've signed a device driver, still it is giving error "Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)".

Please help to look into the issue, what could be the problem.

Thanks!
a b \ Driver
a b $ Windows 7
January 31, 2012 12:20:20 PM

svineets85 said:
Hello,

I've signed a device driver, still it is giving error "Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)".

Please help to look into the issue, what could be the problem.

Thanks!

And the device would be what ? - Different solutions !
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February 7, 2012 2:19:46 AM

ksiemb said:
And the device would be what ? - Different solutions !



Device is a Virtual Card Reader with all the functionalities of Smart Card Reader.
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Related resources
a b \ Driver
a b $ Windows 7
February 7, 2012 7:05:18 AM

svineets85 said:
Device is a Virtual Card Reader with all the functionalities of Smart Card Reader.

You are not being specific enough, as there are many different card readers.
I would do a search for the product name + "error code 52 to see what results you get.
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a b \ Driver
a c 365 $ Windows 7
February 7, 2012 9:05:34 PM

What do you mean "you signed the driver"? Did you code it and obtain the proper signature from Microsoft? You'll need support from them or from support for whatever program and language you used to write the drivers.
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February 9, 2012 3:11:51 PM

Does the device show up devices and printers
Does the device have a yellow triangle and exclamation mark on it
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February 9, 2012 5:34:55 PM

TRY Following

Switch off computer
Start
Press F8 (before boot)
Select Disable Drive signature enforcement (use arrows on keyboard)
press enter let it come up to speed and....wow...

Your computer should then accept your device (whilst it is still running), but it will revert to previous fault after shut down.
Advise If this has worked for you since there is an addition that can be provided to avoid the repeated F8 procedure
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!