Windows 7 Update Failure 800B0100

After updating to Windows 7 SP1 I updated with every new update that came out, but there were problems with the last two:

UPDATE: In the updates history I have found a lot of updates failed:

What can be done? Can I manually update?

P.S. I was offered a fix for this: Windows6.1-KB947821-v12-x64. Should I install?

Solution:

Like the dialog says: reboot Windows. Then check WindowsUpdate and try to install any remaining updates. If that keeps giving an error then you can try to manually install the updates.

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