I have had a lot of update failures. I get a prompt to install updates which I click on. I get a message configuring updates, then I get a failure configuring updates reverting changes. The most recent was a windows 7 service pack. I have tried turning my firewall off but it does not make any difference.
You need to run a repair on your installed updates to fix any faulty ones. Go to Troubleshooting and click on fix problems with Windows Updates in the System and Security section and follow the prompts.Once you have done this then try to install the updates. If you cant install the Service Pack then you may have to download and run the Readiness Tool from Microsoft to help your computer to accept the pack. Try the repair first.