How to troubleshoot common Win 7 system failures

Win 7 system is the same as WinXP. After installing the application software, there are often some strange problems. The following are three common faults and solutions in the use of win7 system. I hope to help you use win7 system. First, press the Win key + E can not open the resource manager If you install some optimization software in the win7 system (such as optimization software that does not support win7 system), some weird problems will occur, common faults have Pressing the Win key + E does not open the Explorer. [Cause of failure]: This is because the optimization software has modified some important items in the win7 system registry, causing the data to be abnormal when the win7 system calls the project. Therefore, before installing the software, you must first check whether the software can be Use on win7 system, if you can't use it, don't install it, so as to avoid strange faults. [Solution]: Click the menu “Start/Run” in the win7 system, enter regedit and enter to open the registry, navigate to HKEY_CLASSES_ROOT\\Folder\\shell\\explore\\command, double-click the DelegateExecute item in the right window (if no This item will create a new one, the type is a string value), enter it as the value in the pop-up dialog box, and the fault can be eliminated after restarting. Second, the U disk can not be used again after exiting. In the win7 system, the U disk is inserted into the computer, the system can usually correctly identify and use, but if you right click on the U disk icon in the task bar, select to exit the U disk, and then insert U again. When the disk is not recognized, the system can not be recognized. To solve this problem, you can restart the system. If you do not want to restart the system, you can also troubleshoot as follows: [Solution]: Enter the win7 system desktop, right click on “Computer”Select“ Attributes & rdquo;, in the pop-up properties window, click the "Device Manager" in the upper left corner, and then pop up "Device Manager" window, click to expand "Universal Serial Bus Control", there are many rows & ldquo ; USB Root Hub & rdquo; device list, right-click each "USB Root Hub", select “Disable” menu, then enable it, this is the case for each "USB Root Hub" Reboot to use the U disk again! Third, some DVD drives can not be used Some DVD drives because with win7 The system is not compatible and the win7 system does not recognize them. For example, if you right click on the win7 system desktop, click "My Computer", click on the "Properties" menu, and click on the left side of the "Device Manager" in the pop-up properties window. If you see no DVD project inside. Instead, there is a yellow exclamation mark indicating that there is a problem with the data signature or a prompt "Windows cannot verify the data signature of this device ……", which means that the DVD drive is not recognized. [Cause of failure]: According to Microsoft, this is because the new power management function of SATA driver (Msahci.sys) adaptive link power management (ALPM), which causes the ALPM function of some DVD drives to be disabled and executed. Therefore, the win7 system does not recognize and use the optical drive. [Solution]: Microsoft has not yet released a patch to solve this problem. It is recommended to use the bcdedit command to solve such problems. In the win7 system, click the menu “Start/All Programs/Accessories” and right-click “Command Prompt”. In the pop-up menu, select “Run as administrator", and then pop up the Command Prompt window, enter the following bcdedit command and press Enter. Tips To facilitate troubleshooting, it is recommended that you right-click on the desktop of the win7 system and click on “Computers”, select “Attributes”, click on “Left System Settings” on the left, and enter in the pop-up window. Advanced & rdquo; tab, and then click "Start and Recovery" under "Start & nbsp", set a & ldquo;, a pop-up window, check the "system failure" under the "write event to the system log", In this way, each time the system is faulty, it will be automatically recorded. If a fault occurs in the future, you can use the Windows diagnostic software to view the crash log and find a solution.