Lenovo g480 can not shut down properly after installing xp, has been staying at the shutdown there

Hello, if you can't shut down repeatedly, you can try the following method to try 1. Don't load the DLL file. In [Start]-->[Run]--> type [Regedit]- HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorer to create a double-byte value named AlwaysUnloadDLL with a value of 1. If you want to remove this optimization, just set the key to 0. 2. Disable the "NVIDIA Driver Helper Service". This service is generally not needed, and it will take up a lot of system resources. The method of closing is Open "Control Panel → Administrative Tools → Services", find and right-click the NVIDIA Driver Helper Service item in the pop-up window, select "Properties", in the pop-up list box that has been launched, select "Disabled". 3. Modify the registration Table Switch: In [Start]-->[Run]-->Type [Regedit]-->[HKEY_CURRENT_USER]-->[ControlPanel]-->[Desktop], the string value [ ,null,null,3],The value data of HungAppTimeout] is changed to [200], and the value data of the string value [WaitToKillAppTimeout] is changed to 1000. Also in [HKEY_LOCAL_MACHINE]-->[System]-->[CurrentControlSet]-->[Control ], change the value data of the string value [HungAppTimeout] to [200], and change the value data of the string value [WaitToKillServiceTimeout] to 1000. 4. Click "Start" and run "regedit", then HKEY_LOCAL_MACHINE\\SOFTWARE \\Microsoft\\WindowsNT Find PowerdownAfterShutdown in \\CurrentVersion\\Winlogon and set the value to 1. Now many software and drivers do not support XP. If invalid backup data is recommended, install WIN7 2013-04-26, 21:39