Update error code 800401E4

I have Vista Business and Office XP. When I try to make the updates, my
Update program tells that the the update failed and gives the error code
800401E4. When I try to click the missing updates link or othet links I get a
strange error message that the target X Y cannot be found (here the
translation may not be exact because the original message was in Finnish. X
and Y are some Japanese or Chinese characters. Can anyone help me with this
problem? I cannot run any updates.