Question 1: How to get the digital signature of Windows driver? Drivers with different signatures after passing are device drivers with digital signatures. Digital signature is an electronic security token, which can indicate the publisher of the software and whether anyone has changed the original contents of the driver package. If the driver is signed by a publisher who uses a certificate authority to verify its identity, you can be sure that the driver really comes from this publisher and has not been changed. If the driver is unsigned, signed by a publisher who uses a certificate authority to verify its identity, or has been changed since its release, Windows will warn you with the following message.

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Windows cannot verify the publisher of this driver.

The driver has no digital signature, or its digital signature has not been verified by the certificate authority. If you obtained the driver from the original manufacturer's CD or through the system administrator, you should only install the driver.

The driver has changed.

The driver has been changed after being digitally signed by the verified publisher. This software package may have been changed to contain malicious software that may damage your computer or steal information. In rare cases, legitimate publishers will change driver packages after they are digitally signed. If you obtained the changed driver from the original manufacturer's CD, you should only install the software.

Windows cannot install the driver.

Drivers with valid digital signatures are missing, or drivers that have been changed since signing cannot be installed on x64-based Windows. Therefore, if you are running an x64 version of Windows.

, you will only see the message.

Question 2: How to obtain the digital signature of Windows driver? Just turn off the digital signature, as shown below.

1. In the process of computer startup, you don't have to wait to enter the user login box, press the F8 button on the keyboard, and the system startup item will appear for us to choose;

2. Then select, disable digital signature, and start the computer. After digital signature is disabled, the driver can be successfully installed. However, after restarting the computer, the settings will be restored to enable digital signatures. The ban on some computers is one-off.

3. Then, we can also turn off the digital signature by force. After entering the system, use the administrator and enter bcdedit.exe-set loadoptions _ integrity _ checks in CMD Runner; Then you will be prompted to disable successfully.

4. Restart the computer, and the system will always turn off the digital signature by default. The driver installation will succeed.

Question 3: How to obtain the digital signature of Windows driver? The digital signature of different drivers is a sign of the reliability and compatibility of computer hardware and drivers. It turns out that as early as the Windows 9x era, Microsoft found through a large number of user surveys that the occurrence of blue screen errors in the operating system is often related to unreliable hardware and improper driver programming. The technical term of blue screen error is GP error, which is also a general Protect error. This is the last thing users want to see, because once this screen appears, it means that the user's data can't be repaired, so they have to shut down and restart or press the reset button to "pinch people".

Let's look at the relationship between GP error and drive. In Windows operating system, memory is divided into two parts: kernel mode area and user mode area. In the core mode area, run the "bottom" software, such as the operating system's own management code and hardware drivers, while in the user mode area, run applications, such as MS Word or Adobe Photoshop. Most of the software we come into contact with every day belongs to applications, which run in user mode, including the user interface of Windows itself. The same feature of applications running in user mode is that even if an error occurs, it will only affect the program itself. For example, if Word dies, we can use Task Manager to shut it down. Data in Word may be lost, but other software in the operating system can still run. This is called operating system protection. There will be no blue screen error at this time. However, once there is an error in kernel mode software, a blue screen will appear. Because the kernel mode of the operating system group is basically unprotected, a "general protection error" will occur.

Windows operating system's own programs running in the kernel state are often fully tested by Microsoft system, so there are few blue screen errors caused by Windows kernel program errors in users' use. Drivers are provided by various hardware manufacturers in cooperation with their computer hardware. Most well-known brand manufacturers can also develop and test reasonably, and all have strict quality control systems, so there are few general problems. However, in order to catch up with the development progress or reduce the cost, some small manufacturers are not perfect in compatibility testing and quality control, and often sell some drivers with hidden defects in hardware. Users buy such products, which brings hidden dangers in use. Microsoft found that most blue screens are for this reason. This is also a reason why the products of small factories with miscellaneous brands are often not as good as famous brands. Using unreliable hardware often leads to a sudden computer crash, automatic restart or blue screen. In the past, people often blamed Microsoft and the instability of the Windows operating system. Microsoft felt very wronged and was accused by bad hardware manufacturers for no reason. But the operating system is the most basic software platform of the computer, and Microsoft should also bear the necessary responsibility for the stability of the whole machine. In order to improve the stability of the whole system and reduce users' criticism of the operating system, Microsoft has introduced a mechanism to identify "good" and "bad" drivers. For "good" drivers, the file extension is. Attach cat, and use encryption algorithm to record which files this driver consists of, whether these files are original files, whether they have been modified, and this file will be put together with this driver file.

Then, after a hardware manufacturer or developer develops a new driver, how can he match such a file for the driver like a well-known brand manufacturer? At present, Microsoft's management of digital signature files is very strict, and it needs to apply to Microsoft's hardware quality laboratory (abbreviated as WHQL according to the prefix of each word). Fortunately, this application procedure is not complicated. Microsoft WHQL has launched a set of constantly updated test software, named HCT (hardware patency test). This test tool set can be downloaded to the latest version for free on Microsoft's website. The current version 12. 1 has just been released. Driver developers can use this tool to test their drivers. If these tests can pass, they can pass through the Internet ...>

Question 4: How to add the digital signature of 100 integral to the driver? In this case, I suggest you try upgrading to the latest version, or contact official website customer service.

Question: How can Windows7 install drivers without digital signature? Windows7 system needs a digital signature for the driver to use, otherwise it will not work normally, but sometimes it needs a driver without a digital signature. At this point, it is necessary to disable driver signature enforcement. The specific steps are as follows:

Methods of disabling driver signature implementation in 1 and Windows7 systems

Start-Run (enter gpedit.msc)- OK or press Enter. Open the local group policy editor;

2. In the opened local group policy editor window, we find: user configuration-management template;

3. In the expansion item of the management template, find: system, expand;

4. In the extension of the system, we find: driver installation, and then left-click: driver installation;

5. In the right window corresponding to the driver installation, we find: code signing of the device driver, left key: code signing of the device driver;

6. In the opened device driver code signing window, we select Enabled, and there are Warning, Blocking and Ignore in the drop-down box of options.

Warning: Notify users of files that are not digitally signed, and let users decide whether to stop or continue the installation, and whether to allow the installation of files that are not digitally signed.

Block: Indicates that the system refuses to install files that are not digitally signed.

Ignore: Command the system to continue the installation (including installing files that are not digitally signed).

If we want to install a driver file without digital signature, we can choose: Ignore, and then click: OK;

7. After the driver installation is completed, it is suggested to set the item just set to ignore as warning (default setting) to enhance the security of the system.

Question 6: How to get the digital signature of WINDOWS for the graphics card driver? Microsoft will strongly advise its customers to use only device drivers marked "designed for Windows". This test ensures that the driver can work on Microsoft's operating system, does not contain viruses and does not interfere with other devices on the system. Each authorized driver is a digital signature containing a. CAT file, indicating that the driver has been checked and has not been changed. In Windows 2000/XP/Vista, the driver signature mechanism is enabled by default, and every user who tries to install an unsigned driver will receive a warning message telling him the importance of driver digital signature.

Only after the manufacturer of the graphics card driver has applied for the Microsoft logo certification certificate and digitally signed the graphics card driver, the graphics card driver purchased by the user will have a WINDOWS digital signature.

In order to ensure the safety of the computer, hardware kernel drivers that have not passed logo certification are not allowed to be installed on Vista!

If you need more detailed information, you can communicate with me on QQ:909676630 MSN；; [E-mail protected]

Question 7: windows requires digitally signed drivers to enter Group Policy for modification, and allows unsigned drivers.

1, Start-Run (enter gpedit.msc)- OK or press enter. Open the local group policy editor;

2. In the opened local group policy editor window, we find: user configuration-management template;

3. In the expansion item of the management template, find: system, expand;

4. In the extension of the system, we find: driver installation, and then left-click: driver installation;

5. In the right window corresponding to the driver installation, we find: code signing of the device driver, left key: code signing of the device driver;

6. In the opened device driver code signing window, we select Enabled, and there are Warning, Blocking and Ignore in the drop-down box of options. Select Ignore: Command the system to continue the installation (including installing files that are not digitally signed).

Question 8: How to apply for a Microsoft-driven digital signature? You can apply by providing information, website evtrust, enterprise type and EV extended year verification type code signing certificate.

Question 9: How to obtain the digital signature of Windows driver? How to pass WHQL certification? First, you can find the WHQL signature driver from the manufacturer's website! Second, you can find it in my driver. Those who pass WHQL are marked.

Question 10: How to close the 64-bit WINDOWS7 system driver and forcibly open the digital signature bcdedit/set testsigning?

Then restart.

You can turn off forced digital signatures.

But after booting to the desktop,

There will be a hint watermark

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