I assume you mean version 10.0.3530.0
Look at the screenshot you provided.
Where it says Primary - Promotions - Social.
Click next to Social, in an empty space, right click, a small menu will open, look for “Category Tabs” and click on “All” then click on Primary - Promotions - Social, so that they are unchecked.
Now all the emails in the inbox will appear.
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