we were obviously posting at the same time - and my connection got broken - and I just lost a long post!
I'll try again. All of these updates are important
- but you have the option with every update to 'hide' it, which prevents it from installing, or reappearing until/unless the update is itself updated (which will happen with the Junk mail updates)
We need to try and establish the reason for these updates behaving in this manner - unfortunatelythe two modes of failure are opposites, so it may get complex.
Please first change the Windows Update settings to download but not install updates, to prevent updates installing accidentally.
I think it will be simplest to start with the standard Windows Updates data request - please follow the instructions at Windows Update Posting Instructions
and post the requested data - it may solve some of the problems, and it may give us more data to work with.
Once that's done, please reboot and run the Fixit at Error codes
then reboot and try to install just the .NET updates on their own - what happens, and what errors do you get, if any?