error code 0x643 when installing update KB951847

Tried several times to install KB951847 ....Microsoft .NET framework 3.5
service pack & .NET framework 3.5 Family update.
Can you give me any advice please?

See http://support.microsoft.com/kb/923100

hi petesmum my name is mary and id like to no if you solfd that problom on
error code if so can you let me no how to do it as i have the same thing and
im only a beginer hope to here from you soon mary

I am trying to follow the link provided by knockerccd & all i get is a fix-it to uninstall office please advise