Windows 7 system three common troubleshooting techniques

Windows 7 is the same as the previous WinXP, after installing the application software, there will often be some strange problems, the following lists the three common faults and their solutions in the use of Win7, I hope to help you use Win7!

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

If you install some optimization software in Win7 (for example, Win7 is not supported) Optimization software), some weird problems 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 the data to be abnormal when Win7 calls the project, 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 the DelegateExecute item in the right window. (If there is no new 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, U disk can not be used again after exiting

In the Win7, 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 in the task bar Icon, choose to exit the USB flash drive, and then insert the USB flash drive again, the system is not 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” 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", there are many lists of "USB Root Hub" devices, right-click each "USB Root Hub", select the "Disable" menu, and then enable it, so that this is done for each "USB Root Hub". You can use the USB flash drive again without restarting later!

Some DVD drives cannot be used

Some DVD drives are not compatible with Win7, Win7 cannot 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 you see no DVD project inside, there is a yellow exclamation mark. There is a problem with the data signature or "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 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 "Start/All Programs/Accessories" in Win7 and right-clicking " At the command prompt, select "Run as administrator" in the pop-up menu, and then pop up a command prompt window, enter the following bcdedit command and press Enter.

Tips

For the convenience of troubleshooting, it is recommended that you right click on "Computer" on the Win7 desktop, select "Properties", click on "Advanced System Settings" on the left, in the pop-up In the window, go to the "Advanced" tab, then click "Settings" under "Startup and Recovery", a window pops up, check "Write events to the system log" under "System failure", so that each time the system The fault 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.