In WordPress by default our all post have category already selected is called ” Uncategorized ”
– whether they’re in use or not. For example:
I don’t have the option to delete the Uncategorized category but I can rename it only.
Deleting the Uncategorized category
- Go to Settings>Writing
- Change the default category from Uncategorized to another category in use
- Click Save
- Go to Posts>Categories
- Check the box next to Uncategorized and click delete.