And while you're fiddling with Windows Update you could try installing the outstanding updates a dozen (to pick a number) at a time.
In Windows Update click on "Check for Updates" then click on "92 important updates are available" when that appears.
You'll be presented with a list of updates. Deselect the entire list (the tick at the very top) then select the first dozen and click "OK". Repeat until it fails, then narrow the selection to find the sticking point.