Deep analysis of Windows 7 device driver management principles

1. Interpretation of Device Driver Files for Windows 7 Systems

The Windows 7 system includes a wide range of driver libraries. In the basic installation of the operating system, these drivers are saved in the driver store, which is located in the %SystemRoot%\\System32\\DriverStore\\FileRepository directory. In addition, a subfolder corresponding to the localized driver information is also saved in the DriverStore folder. For each language configured on the system, there is a corresponding subfolder here. For example, the author installed the English version of the Windows 7 system, and the localized English driver information is located in the en-us subfolder.

In the driver store, each device driver is certified and ensures full compatibility with the Windows 7 system home, with Microsoft's digital signature, which ensures that the driver is operating Absolutely available in the system. When installing a new compatible Plug and Play device, the Windows 7 system checks for available compatible device drivers in the driver store. If found, the operating system will automatically install the device.

2, Windows 7 system device driver signature information should be valued

For Windows7 systems, it is a serious challenge to provide good support for peripheral devices. Without exception, in order to ensure the stability of the system and the good operation of the device, Microsoft recommends that the user choose to include the digital signature as the device driver version. This is very important for users, because Windows7 system is one of the latest system platforms, and all aspects need to be further tested or tested, which is generally ignored by many users. Device drivers with Microsoft digital signatures don't crash or become unstable, and Microsoft digital signatures ensure that device drivers have not been tampered with, which eliminates driver-level Trojans.

Conversely, if a user forces a driver that does not have a digital signature, it is likely to cause the Windows 7 system to become unresponsive or crash, which is even more serious than the problem caused by installing a normal program on the operating system. I have had such an experience. In addition, there are many cases in the forum that cause Windows 7 to crash due to the driver. Therefore, it is recommended for Windows 7 system users to use signed drivers as much as possible. Of course, in some cases, we may find that the specific device is a driver that does not contain a signature. At this point, it is recommended that you search the device manufacturer for the website to see if a signed driver is available. Because sometimes there may be a driver with a signature, but it is not included in the driver's CD home of the device or the installation disk of the Windows 7 system.

3, Windows 7 system driver file troubleshooting

When the hardware driver installation error, not only can not drive the device, and it may cause instability or even crash of the deep system. The built-in hardware diagnostics of the Windows 7 system can detect various types of hardware device failures, so that the driver files can be debugged accordingly. Normally, if the system detects a problem after the latest system download and installation, we will see a bubble notification of the problem report and the solution prompt. Click the bubble notification to open the problem report and solution console. Alternatively, we can open the console by clicking the System and Maintenance link in the Control Panel of the Windows 7 system and clicking Problem Reports and Solutions. In the Problem Reports and Solutions window, click the View Issues to Check link to view an existing issue, or click the Check for Solutions link to search for possible solutions to known issues from the Microsoft website.

4, resource conflict caused by device driver troubleshooting

Sometimes, when we install a driver file of a device in Windows7 system will display resource conflicts, then how to debug What? The smart features of the Windows 7 system make it very easy for us to troubleshoot this. If you suspect that a device is causing a resource conflict, you can quickly view the resource by clicking the "View" menu in the Device Manager of Windows 7 system and selecting the "Sort resources by type" or "Sort resources by connection" view. Allocation, here we can see the use of IRQ by ISA and PCI devices. In general, each ISA device has its own IRQ settings, and multiple PCI devices share the same IRQ settings. The author specifically reminds that if some devices display a warning icon and an exclamation point, this is not a resource conflict, it should be a device configuration error.

It should be noted that in Windows systems, devices can share IRQ settings, so two devices that are not related when sharing the same memory address or I/Q port, there is usually a conflict between these devices. Once the two parties to the resource conflict are identified, we can manually modify the resource settings of some devices in Device Manager. Opening the device is a properties dialog, and in the Resources tab, select the type of resource you want to use. If you can change it, you can cancel the selection of "Use automatic settings" and then view the settings based on whether the candidate is available in the drop-down list. If there is a selection, the conflict can be resolved.

Review of the site: The problems related to the system driver can not be solved by ordinary users. Therefore, when handling system drivers, you need to be extra careful not to make any mistakes. Ordinary users recommend a merchant-driven installation method when installing the system or when accessing new hardware.