windows could not search new updates error found code

Windows Vista 5384 automatically updates, but when I try to update manually, I get the message above. Trying to update Windows Defender manually, a pup up comes with ''Windows Defender was unable to complete the update: 0x80240018. The program issued a command but the command length is incorrect'' message. But it can be updated automatically.
Could anyone make a comment?

This could be a result of a time out session on the Server, I recommend you try again later. -- -- Andre Windows Connected | http://www.windowsconnected.com Extended64 | http://www.extended64.com Blog | http://www.extended64.com/blogs/andre http://spaces.msn.com/members/adacosta
"enoskype" wrote in message

Windows Vista 5384 automatically updates, but when I try to update manually, I get the message above. Trying to update Windows Defender manually, a pup up comes with ''Windows Defender was unable to complete the update: 0x80240018. The program issued a command but the command length is incorrect'' message. But it can be updated automatically.
Could anyone make a comment?