Flourish Pixel

Remove/Exclude specific categories from site RSS Feed. You just need to install this, then place your category id in it’s option page and save. That’s all. If you want to exclude more than one category, then place them one by one and separate them by comma.
For Example: -1,-2
**Note: you must need to use minus sign (-) before category id.

FP RSS Category Excluder

Remove/Exclude certain categories from site RSS Feed.

zugrina

Small plugin that allows you to exclude pages or posts from WordPress administration post/page listing. It also works with custom post types. Pages or posts can be excluded per user role.
One good example would be a login page with a shortcode for login form. You want to make sure that this page is not deleted by accident.

Tailored Easy Exclude

Small plugin that allows you to exclude pages or posts from WordPress administration post/page listing, and post/page can be excluded per user role.

FP RSS Category Excluder vs Tailored Easy Exclude