In another post, we provide an overview of what WordPress plugins are all about and how you can use plugins to expand your web site’s functionality.
To read the article, go here:
In this step-by-step tutorial you will learn why plugins need to be kept up-to-date, how to safely update and remove plugins from your site, and discover practical tools to help you better manage your plugins.
How To Update And Delete WordPress Plugins
Why WordPress Plugins Need To Be Frequently Upgraded
WordPress frequently updates its software (about every 3-4 months) to fix bugs and address security issues and vulnerabilities discovered in previous versions, as well as to improve existing features.
Depending on how many plugins you use on your site, you can expect to see at least some new new update notifications for plugins each time a new WordPress version is announced.
This is because most WordPress plugins are created by 3rd-party developers, so sometimes code in the new WordPress version conflicts with plugins that were developed for a previous version. When this happens, there is a potential for problems to sometimes develop.
Fortunately, most WordPress plugin developers (and the WordPress developer community itself) are very proactive when it comes to making sure that plugins get updated when a new version of WordPress is released (if updating is needed). All you need to do on your end, is keep your plugins up-to-date, which, as you will soon learn, is very easy and simple to do.
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Keeping your WordPress plugins regularly updated and removing old plugins you no longer use is part of good WordPress management and helps to avoid problems and errors.
The WordPress tutorial below explains how to automatically update and delete plugins safely without requiring web programming skills.
Updating And Deleting Plugins – Step-By-Step Tutorial
WordPress utilizes several methods to alert users when plugins need to be updated.
For example, you can tell immediately how many plugins are out-of-date from your Administration area simply by looking at the main “Plugins” menu.
In the screenshot below, you can see that 9 plugins have older versions that need to be updated …

You can also view how many plugins need updating from your WordPress Administration Toolbar (as shown below, a number of plugins require updating) …

The Plugins page (Plugins > Installed Plugins) also lets you know which plugins need updating …

In addition to providing information about plugins that have available updates, the Plugins page provides links to the plugin download sites and gives you the option to update the plugin instantly …

Let’s start by showing you how to upgrade individual WP plugins.
Upgrading Single Plugins
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Always make a full backup of your data and files before upgrading your website.
From your WP admin menu, go to Plugins > Installed Plugins …

You will be taken to the “Plugins” section. The table of plugins can go down your screen for a while, depending on the number of plugins you have added to your site …

(WordPress Plugins Screen)
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Useful Tips:
If you have too many plugins and would like to make this section more manageable, then click on the Screen Options tab at the top of your Plugins page and enter a smaller number of items per page (all plugins show on the page by default, i.e. “999”), then click Apply …

Your Plugins section will now be reduced in size with a ’numbered pages’ feature added. You can find an installed plugin by scrolling through the pages or using the “Search Plugins” field …

WordPress displays plugin information in different backgrounds depending on the status of the plugins (inactive vs. active and up-to-date vs. out-of-date) …

Plugins that need upgrading show the following notification message: “There is a new version of [Plugin Name] available” …

Find the plugin that you want to update and click on the update now link …

WordPress provides smooth & simpler plugin updates, so that updating your plugins takes place with just “one click” without leaving your Plugins screen …

Repeat this process for any other plugins on your site that need updating, or refer to the section below if you have several plugins that are out-of-date and would like to upgrade all plugins in one simple operation.
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Now that you know how to update individual plugins, let’s show you how to upgrade several plugins simultaneously.
Bulk-Upgrading WordPress Plugins
To upgrade multiple WordPress plugins at the same time using the automatic update feature, go to the “Plugins” screen and click on the Update Available link on the menu at the top of the page …

Tick the check box in the Plugin column header to select all plugins at once, or select each plugin you want to upgrade by checking their individual boxes …

In the Bulk Actions pull-down menu at the top of the page, choose Update …

Click Apply …

Your selected plugins will automatically begin to update …

Once all plugins have been updated, you can click on the Return to Plugins page link to go back to your Plugins area, or choose another section of your dashboard …

Once all plugins are up-to-date, the plugin notifications disappear (i.e. the “at-a-glance” indicators and “There is a new version of XYZ plugin available” notices no longer display on your screen, toolbar and menus) …

You have updated all plugins on your site!

(When your site or blog uses the latest version of all plugins, notification icons disappear)
Now that you know how to automatically update WordPress inside the dashboard, it’s time to learn how to safely delete plugins from your WordPress blog or website.
Deleting Plugins
Occasionally, you may want to delete plugins that are no longer needed or being used on your site. This can help to reduce server resources and also help to eliminate potential problems.
In this section, you will learn how to safely remove unused plugins from your site.
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Always create a full back up of your site before installing, upgrading or deleting plugins, in case something goes wrong and you need to recover data or reinstall your site.
To delete a plugin, go to your admin menu and choose Plugins > Installed Plugins …

In the Plugins screen, locate the plugin you want to delete and make sure it is inactive.
Hint: Inactive plugins use a different colored background than active plugins and show an “Activate” link below the plugin name …

If the plugin is active, click on Deactivate before proceeding …

Click on Delete …

If you need to have a look at all the files that will be deleted before taking the next step, then click on the “Click to view entire list of files which will be deleted” link in the “Delete Plugin” screen …

A complete list of files belonging to the plugin that you are about to delete will display on your screen …

If you are absolutely sure about going ahead and deleting the selected plugin files, click on the Yes, Delete these files button …

The selected plugins and related files will be deleted from your server …

How To Bulk-Delete WP Plugins
You can bulk-delete all inactive plugins on your site, or select a combination of active and inactive plugins to be removed.
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Note: To delete any plugins that are currently active, you first need to deactivate them.
Go to the “Plugins” section and select all of the active plugins that you want to delete by either placing a tick next to their check box, or selecting the checkbox next to the Plugin column header to select all plugins (warning: this will deactivate all plugins) …

Next, choose Deactivate from the Bulk Actions dropdown menu …

Click Apply …

All selected plugins will be deactivated …

Once you have deactivated your plugins, click on the Inactive link on the menu at the top of the page …

Tick the check box next to the Plugin column header to select all plugins at once, or select only the plugins you want to remove by checking its box …

Once you have ticked all the check boxes next to the plugins that you want to delete, select Delete from the Bulk Actions dropdown menu …

Click the Apply button …

A list of all selected plugins will show up in the Delete Plugins area. Click on “click to view entire list of files which will be deleted” to review all the plugin files that you are about to delete, or click on the Yes, Delete these files button if you are sure that you want to proceed to the next step and remove all of the plugins listed …

Your selected plugins will be deleted …

Managing WordPress Plugins – Tools
In addition to the methods shown above, you can install WordPress plugins that help you manage your WordPress plugins.
Health Check & troubleshooting

This plugin provides comprehensive checks for your WordPress installation to detect common configuration errors and known issues. It also enables plugins and themes to add their own custom checks.
The debug section allows you to easily gather information about your WordPress and server configuration, which can be shared with support representatives for themes, plugins, or on the official WordPress.org support forums.
The troubleshooting feature allows you to initiate a clean WordPress session, where all plugins are disabled and a default theme is used, but only for your user account until you choose to disable it or log out.
The Tools section offers the ability to check for file tampering in WordPress, test email-sending functionality, and verify plugin compatibility with future PHP version updates.
For more details, go here: Health Check And Troubleshooting
Managing WordPress Plugins On Multiple Sites
As discussed earlier, when plugin updates are released, the best practice is to update the plugin as soon as possible to its latest version.
What if you run multiple WordPress sites using the same plugin?
Typically, you would need to log in to every site individually and update the plugin manually from the site’s admin dashboard.
If you manage or plan to manage multiple sites, this process can become very time-consuming, especially as plugins get updated quite often.
If you manage multiple WordPress sites, you can install, update, and delete multiple plugins on all your sites automatically and simultaneously using WordPress site management tools, like the one below:
WPMU DEV’s The Hub

The Hub lets you manage unlimited WordPress sites easily and effectively from one central command center.
The Updates section of The Hub shows you exactly what needs updating on each of your managed site(s), including plugins, themes, and core software updates.

The Hub’s Updates features display how many outdated components need updating on your site(s).
You can choose to either update all your plugins at once or update them individually with just a few clicks. Best of all, you don’t need to log into every site separately to perform your plugin updates.

Update everything at once or perform individual updates directly in The Hub with a few clicks.
This can be a real time-saver when managing multiple WordPress sites, especially when WordPress releases a new version and you have to update many plugins and themes to prevent potential issues from happening.

You can read our comprehensive article on managing multiple sites effectively using the Hub or visit WPMU DEV to learn more and try The Hub for free.
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"I have used the tutorials to teach all of my clients and it has probably never been so easy for everyone to learn WordPress ... Now I don't need to buy all these very expensive video courses that often don't deliver what they promise." - Stefan Wendt, Internet Marketing Success Group