-Hi, my name is Claudeir, I'm happy to help you!
Updates corresponding to Windows 10 not available in Optional Updates?
Click on Advanced Options and uncheck the 'Get updates for other Microsoft products' option
If that doesn't work, restart Windows update:
Windows+R> type: services.msc> press enter> Startup type: Automatic, now click Stop. Apply and ok. Restart PC and test.
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Graciously,
Claudeir