Hi, I have a driver file which i am trying to run on win 7 64 bit. It is digitally signed file using dseo13b.exe. Now this file gives error saying Windows cannot verify the digital signature for this file. 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. How do i load the driver on win 7 64 bit. My driver is digitally signed still why does it say that windows can not verify it. How do i make windows verify the file.. Please help.. Thanks in advance

Hi, I have a driver file which i am trying to run on win 7 64 bit. It is digitally signed file using dseo13b.exe. Now this file gives error saying Windows cannot verify the digital signature for this file. 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. How do i load the driver on win 7 64 bit. My driver is digitally signed still why does it say that windows can not verify it. How do i make windows verify the file.. Please help.. Thanks in advance I have tried testsigning on.. but i dont want to use this option as it causes other problem to my application. Please suggest other ways where i can solve the issue..

Hi, Since dseo13b.exe is third-party software, we cannot provide further assistances on it. Regarding loading a unsigned driver, I suggest you attempt to hit F8 as soon as the computer boots, to access the option "Disable Driver Signature Enforcement" from the Advanced Boot Menu. Also, you can configure this setting through Group Policy Object: Open Group Policy à User Configuration à Administrative Templates à System à Driver Installation à Code signing for drivers Enable this policy and set it Ignore. Alex ZhaoPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Please run sigverif.exe (from Start search box), run it, open the log and post the results here, thanks!Kunal D Mehta - a Windows Server Enthusiast | My first TechNet Wiki Article