The reason why the machine cannot be turned off:
In most cases, virus Trojans start by hijacking the registry, causing the shutdown button to disappear.
2. The "Advanced Power Management (APM)" function causes shutdown problems;
3. The sound file is damaged;
4. The CMOS setting is incorrect.
Corresponding solution:
1. Use the security software on your computer to perform a full Trojan virus scan;
Click the "My Computer" icon, select "Properties", open the "Device Manager" window, and cancel the "Enable Power Management" option under the "System Devices" option.
After clicking the "Start" menu with the mouse, select "Control Panel" and open the "Sound" option. Then, cancel the "Exit Windows" sound and define "Exit Windows" as silent.
4. Enter the CMOS setting page and refer to the motherboard manual to check whether the CPU FSB, power management, virus detection, IRQ interrupt shutdown and other options are set correctly.
The computer cannot be shut down
In the case of, you have issued a shutdown command, but Windows just doesn't respond. Start --- shut down, and do it several times. The computer just ignores you. It’s really an unpleasant thing! Then encounter
Windows XP cannot shut down
First you can determine whether the exit Windows sound file is damaged. Open the Control Panel, turn on the sound, and cancel the exit Windows sound. If Windows shuts down normally, the problem is caused by exiting the sound file. To solve this problem, you can restore the sound file from backup or reinstall the program that provides the sound file, or you can define the exit of Windows to be silent. Possible reason 2. Too many loaded programs prevent shutdown
You can run Msconfig and turn off the programs that automatically start at boot. Possible reason 3. Pay attention to advanced power management and fail to shut down
In addition, the Advanced Power Management (APM) function on the computer can also cause shutdown or black screen problems. To determine whether APM is causing the shutdown problem, open Device Manager and open system devices. Disable the power management selection in Advanced Power Management. If the computer shuts down normally, the cause of the problem may be APM.
Possible reason 4. Shutdown failure after startup
We often encounter problems such as when Windows just starts, it shows that you can safely shut down the computer, or it shuts down immediately when starting up, or restarts when shutting down. The cause of this type of failure is generally caused by damage to the Wininit.exe or Vmm32.vxd file. The solution is to retrieve these two files from the WINDOWS installation program compressed package. Place it in the Windows\system subdirectory, rename Vmm32.vxd to Vmm32.XXX for backup, then open the system tool, select the system file checker in the system information tool, select to extract a file from the installation disk, enter Wininit.exe or Vmm32.vxd. Repeat this step to replace the file Wininit.exe or Vmm32.vxd.
Possible reason 5. There is a problem with Config.sys or Autoexec.bat that prevents shutdown
You can check whether there are conflicts in the Config.sys file or Autoexec.bat file. Use a text editor to check the contents of these two files to see if there are redundant commands. You can also use rem to prohibit the execution of certain statements and gradually eliminate them until conflicting commands are found. Possible reason 6. Checking CMOS settings prevents shutdown
Incorrect CMOS settings can also cause computer shutdown problems. You can enter the CMOS settings page when the computer starts, focusing on checking the CPU FSB, power management, virus detection, IRQ interrupt shutdown, disk startup sequence and other option settings. is it right or not. For the specific setting method, you can refer to your motherboard manual, which has very detailed setting instructions. If you really don't understand the settings, it is recommended that you just use the factory default settings.
There are many reasons for failure to shut down normally. To eliminate hardware faults, there are some reasons as follows:
1. It may be that the BIOS settings are incorrect. Enter the BIOS and set the power management option "ACPIFunction" in the BIOS to "Enabled".
2. Click "Start-Settings-Control Panel-Power Options-High-Energy Power Management", check "Enable advanced power management support"-OK.
3. Virus infection, anti-virus.
4. Software conflict. Some anti-virus software conflicts with XP. Before shutting down, disable the real-time monitoring of the anti-virus software, then close the system tray resident program, and then shut down the computer. If the problem is solved, it is an issue with the anti-virus software.
5. Close all open programs and then shut down.
6. USB device conflict. Remove the USB device before shutting down.
7. Click "Start" and run "regedit", then select HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT
Find PowerdownAfterShutdown in\CurrentVersion\Winlogon and set the value to 1.
8. The system automatically shuts down the file and the file is lost. Use the system disk to repair it, or reinstall the system.
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