I too ran a manual update check, no problem here. Though I was offered 7 updates I unchecked 1 (the Malicious software removal tools one, I never download that) and the others downloaded and installed as expected.
I forgot to check the don't tell me about this update again; after my reboot, a little while later I had the WU updates are available pop-up checking what was available it was the Malicious software removal tools. I declined this again and remembered to check the don't tell me about this again.
You don't say what the KB was that you had trouble with ?