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Driver signature enforcement Win 7

Posted on 2016-10-02
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Last Modified: 2016-10-24
Hi All Expert,

Good day.

I have one user which is having unknown driver issue, with mouse and keyboard not being to control. The only way is through F8 disable driver signature enforcement. I have try bcdedit /set testsigning on, bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
bcdedit.exe -set TESTSIGNING ON, also tried on gpedit ->User Configuration -> Administrative Templates -> System -> Driver Installation -> Code signing for drivers

Click on "Disabled", then on "OK".

I did a system restore before last week it works but somehow it came back again, also have disable windows update. All recent software have being uninstall and how can i check for unsign driver.

Appreciate if anyone have this experience can advise me on.

Thanks!
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Question by:xchiazyx
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Accepted Solution

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rindi earned 2000 total points (awarded by participants)
ID: 41825926
Look on the PC manufacturer's website for updated drivers made for Windows 7, and install them, starting with the chipset drivers, rebooting, then the rest.
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Expert Comment

by:Uttam Kumar
ID: 41826213
Once this works for my similar issue. You can try to edit the registry key HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows NT\Driver Signing and change value of 'BehaviorOnFailedVerify ' to ZERO, take backup of keys before any edits.
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Author Comment

by:xchiazyx
ID: 41829926
Hi All,

Thank you for reverting back.

I use sigverif and check and found out that that's 5 files have not been digitally signed. It surprised me that 5 of them are system files. I don't know should I remove it, if anyone had this knowledge kindly advise me.

Below are the 5 files.

peauth.sys
usbd.sys
usbehci.sys
usbhub.sys
usbport.sys

Thanks!
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LVL 88

Expert Comment

by:rindi
ID: 41829964
As I mentioned already, download the latest official drivers for your OS and PC from the PC manufacturer. Those drivers should be properly signed.
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Author Comment

by:xchiazyx
ID: 41831258
Hi,

Thank you for reverting back.

I have updated all driver from dell and with windows 7 update as well.

Thanks!
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