Reinstall WordPress core files in an existing site

Overview

The instructions in this article reinstall the core WordPress files into your existing WordPress site. These steps assume your original WordPress files are still in your current website directory.

What do these steps do?

The following methods only reinstall the core WordPress files. This means your themes, plugins, database, and wp-content folder are not affected.

• Option 1 — Reinstalling in the WordPress dashboard
• Option 2 — Reinstalling using FTP
• Option 3 — Reinstalling using wp-cli

If you need to install a new copy of WordPress on an empty website, view the following articles instead.

• Install WordPress using the DreamHost WordPress installer
• Installing WordPress using wp-cli and SSH

Should I reinstall WordPress?

It would help if you first exhausted all other troubleshooting options before reinstalling WordPress. The following articles provide solutions to the most common problems.

• Troubleshooting WordPress

Contact support if you’re still unsure if you should reinstall WordPress.

Back up your data

You should always back up your data before making any changes to your site. View the following article for instructions on how to back up your website files and database:

• Manually backing up website data.

Option 1 — Reinstalling in the WordPress dashboard

You can reinstall your core files in the WordPress dashboard if you are still able to log in.

1. Log into your WordPress site at example.com/wp-login.php.
2. Navigate to the Dashboard > Updates page.
3. On the next page, click the Reinstall version x.x.x button.

Option 2 — Reinstalling using FTP

If you don’t have access to your WordPress dashboard, you can upload and overwrite the files using an FTP client.

1. Visit https://wordpress.org/download to download the WordPress .zip file to your computer.
2. Unzip the file on your computer. This unpacks all WordPress files and directories.
3. Within these files, delete the wp-content directory.
4. Log into your site using an FTP client.
5. Upload all files and directories you just downloaded to your current site. When prompted, choose to overwrite the files on the server.

Option 3 — Reinstalling using wp-cli

wp-cli is a command-line tool you can use to manage your WordPress site. The following example uses the –skip-content option to download WordPress without the default themes and plugins. You can read more about this command here.

1. Log into your site via SSH.
2. Navigate into your website directory. Make sure to change the username to your Shell user.
3. [server]$ cd /home/username/example.com
4. Run the following command to download your core files.

After you’ve successfully imported your WordPress website to Google Cloud, you will need to reset your permalink structure. From your WordPress dashboard, go to Settings > Permalinks, and select the permalink structure that you prefer (if undecided, use Post name).

Contributing

If you find this useful and if you want to contribute, there are three ways:

1. You can submit your bug reports, suggestions, and requests for features on GitHub;
2. You can also submit a pull request;
3. If you want to translate it into your language (there are just a few lines of text), you can use the translation project;

Migrating custom domain

When you migrate a live site and its DNS domain name to App Service, that DNS name is already serving live traffic. You can avoid DNS resolution downtime by binding the active DNS name to your app as described in Migrate an active DNS name.