Tweak Library – Change the driver signing behavior.

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Change the driver signing behavior.

Digital signing on the device driver ensures quality and assurance of the product. But you can use this setting to change the default behavior.

Tweak for : Windows XP, Windows 2003, Windows 2000

Description:

Digital signature indicates that a particular driver or file has met a certain level of testing and that it was not altered or overwritten by another program's installation process. It has got a quality stamp, an assurance.

Depending upon the settings you configure, it decides on the behavioral action to be taken on finding unsigned drivers during hardware installation. Windows may either ignore or display a warning or prevent you from installing the driver.

For this, go to Start > Run menu, enter “regedit” and navigate to the registry path listed below. If any of the subkeys “\Windows NT\Driver Signing” does not exist, create them as explained below. Then, create a dword value “BehaviorOnFailedVerify” in the right panel.

Now, right-click and modify its value to 0 or 1 or 2 which can change the behavior of driver signing. However, if you want to activate the default behavior, change the value data to “1”.

The below registry values explains the action to be taken:

Registry Value	Action Windows take
0	"Ignore" directs the system to proceed with the installation even if it includes unsigned files.
1	"Warn" notifies the user that files are not digitally signed and lets the user decide whether to stop or to proceed with the installation.
2	"Block" directs the system to refuse to install unsigned files

The changes take effect after a restart or logoff.

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Registry Entry Details:

Registry Entry 1 :

[HKEY_CURRENT_USER\Software\Policies\Microsoft\]

Key Type :

Current User

Value Name :

Windows NT

Data Type :

Key

Enabled Value :

Disabled value :

Other value :

Value Action :

Add an Entry

Registry Entry 2 :

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows NT\]

Key Type :

Current User

Value Name :

Driver Signing

Data Type :

Key

Enabled Value :

Disabled value :

Other value :

Value Action :

Add an Entry

Registry Entry 3 :

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows NT\Driver Signing\]

Key Type :

Local Machine

Value Name :

BehaviorOnFailedVerify

Data Type :

DWORD (DWORD Value)

Enabled Value :

0 = Ignore, 1 = Warn

Disabled value :

2 = Block

Other value :

Value Action :

Add an Entry

Steps ScreenShots:

Apply registry settings according below given steps of screenshots with related changes.

User gets the prompt to ‘Continue’ or ‘Stop’ while installing unsigned device drivers.

Unsigned device drivers are blocked from installing.

Digitally unsigned device drivers are allowed to install and no prompt is given to user.

First, click the 'Start' button, and select 'Run'. In the resulting dialog box, type "regedit".

Second, go to the [HKEY_CURRENT_USER\Software\Policies\Microsoft\] key, right-click and click on the "New > Key" to create a new key with the name "Windows NT".

Third, right-click on the 'Windows NT' key and create a new key with the name "Driver Signing".

Fourth, right-click on the blank area in the right pane and click on "New > DWORD Value" to create a new DWORD value with the name "BehaviorOnFailedVerify".

Fifth, right-click on the 'BehaviorOnFailedVerify' DWORD value and click on "Modify".

Finally, enter either of the numbers 0, 1 or 2 in the text box and click on 'OK'. (0 = Ignore, 1 = Warn 2 = Block).

Other Related Tweaks

Set “Driver Signing” behavior. Category : Software / Applications > Other Programs This setting controls the options that should appear if Windows is about to install a driver that has not been digitally signed.

Set “Driver Signing” behavior.

Category : Software / Applications > Other Programs

This setting controls the options that should appear if Windows is about to install a driver that has not been digitally signed.

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