Windows 7 system common troubleshooting methods

  
        

The new Windows 7 system will have various problems after installing the application software. This article briefly introduces three common faults and their solutions.

1.U disk can not be reused

In Win7 system, if you exit after using the U disk for the first time, then insert the U disk again, the system can not recognize it, to solve This problem, you can restart the system, if you do not want to restart the system, you can also troubleshoot as follows: Go to the Win7 system desktop, right click on "Computer" and select "Properties", in the pop-up properties window, click "Device Manager" in the upper left corner. Then pop up the “Device Manager” window, click to expand “Universal Serial Bus Control”, a list of many “USB Root Hub” devices appears, right click on each “USB Root Hub”, select “Disable” menu, and then Enable it, this is the case for each "USB Root Hub", you can use the U disk again without restarting later!

2. Explorer cannot be opened

When Win7 Some optimization software is installed, especially the optimization software that does not support Win7, and may malfunction. For example, pressing the Win key + E can not open the resource manager. This is because the optimization software modifies some important items in the Win7 registry, causing Win7 to call the project with abnormal data and errors, so it is best to check the compatibility of the software with Win7 before installing the software. You can open the registry by typing regedit and carriage return in Win7, navigate to HKEY_CLASSES_ROOT\\Folder\\shell\\explore\\command, and double-click the DelegateExecute item in the right window (if there is no entry, create a new one, Type is a string value. In the dialog box that pops up, enter {11dbb47c-a525-400b-9e80-a54615a090c0} as the value. After restarting, the fault can be eliminated.

3. Some DVD drives cannot be used

Some DVD drives are not compatible with Win7 and Win7 does not recognize them. For example, if you right-click "My Computer" on the Win7 desktop, click the "Properties" menu, click "Device Manager" on the left in the pop-up properties window, if there is no DVD project inside, there is a problem with the data signature or The prompt "Windows can't verify the data signature of this device...", etc., means that the DVD drive is not recognized. According to Microsoft, this is because the SATA driver (Msahci.sys) adaptive link power management (ALPM) new power management features, resulting in some DVD drive ALPM function can not be properly enabled and executed, so Win7 does not recognize and Use this optical drive. Microsoft has not yet released a patch to solve this problem. It is recommended to use the bcdedit command to solve such problems by clicking on the menu "Start/All Programs/Accessories" in Win7, right-clicking on "Command Prompt" and selecting from the pop-up menu. "Run as administrator", then pop up a command prompt window, enter the following bcdedit command and press Enter.

A system can't be perfect. There are some faults or problems in the process of using it. This is the driving force for the continuous development of the system. Both users and developers benefit from eliminating these faults.

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