Windows 7 system common troubleshooting tips

Common troubleshooting tips for Windows 7 system

Windows 7 is the same as WinXP. After installing the application software, there are often some strange problems. The following lists three common faults and their solutions during Win7 use. Way, I hope to help everyone use Win7!

First, press the Win key + E can not open the resource manager

If you install some optimization software in Win7 (for example, does not support Win7 optimization software), some weird The problem will occur, the common fault is to press the Win button + E but can not open the resource manager.

[Fault reason]: This is because the optimization software has modified some important items in the Win7 registry, causing Win7 to call the project with abnormal data and errors, so you must check the software before installing the software. Can the software be used on Win7, if it can't be used, don't install it, so as to avoid strange faults.

[Solution]: Click on the menu "Start/Run" in Win7, enter regedit and enter to open the registry, navigate to HKEY_CLASSES_ROOT\\Folder\\shell\\explore\\command, double click in the right window DelegateExecute item (create a new one if there is no such item, 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 plug the U disk into the computer, the system can usually correctly identify and use, but if you right click on the U disk in the task bar Icon, choose to exit the U disk, and then insert the U disk again, the system is not recognized, in order 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 】: Go to the Win7 system desktop, right click on “Computer” and select “Attributes”. In the pop-up properties window, click “Device Manager” in the upper left corner, and then “Device Manager” will pop up. , click to expand "Universal Serial Bus Control", there are many rows of "USB Root Hub" device list, right-click each "USB Root Hub", select the "Disable" menu, and then enable it, This is the case for each "USB Root Hub", so you can use the U disk again without restarting!

Third, 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 on the Win7 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 items 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.

[Failure]: According to Microsoft, this is because the new power management function of SATA driver (Msahci.sys) adaptive link power management (ALPM), which leads to the ALPM function of some DVD drives. Cannot be enabled and executed properly, so Win7 does not recognize and use the 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 by clicking on the menu in Win7. Start/All Programs/Accessories”, right Click "Command Prompt", select "Run as administrator" in the pop-up menu, and then pop up the Command Prompt window, enter the following bcdedit command and press Enter.