XP Automatic Update option is a grey problem to solve

I do not know that you have encountered XP Automatic Update option is not available (gray) is not, it is estimated that this is a more disturbing problem, I ask for help, and finally found the answer in a forum.

The specific solution is to start-run-regedit, open Registry Editor, and look in the registration form:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows, expand Windows, remove the windowsupdate under it, and now turn on the Automatic Updates option. Do you have a choice?

Since WindowsUpdate is added by other software, it is not added by Windows, so you can safely delete it.

In the automatic Update will be the default to help you select an item, if you do not want to delete windowsupdate (or there is no windowsupdate this thing), you can also modify the WindowsUpdate in Group Policy to enable Automatic Updates:

Start-run-gpedit.msc, Computer Configuration-Admin Template-windows Component-windows Update, double-click to configure Automatic Updates in the right window to select Enable or disable.