After you download your theme from the WordPress.org, you can choose either of the approaches given below to install your theme.

Approach I : From your admin dashboard.

1. Log in to the WordPress Administration Panels.
2. Select the Appearance panel, then Themes.
3. Select Add New.
4. Then select Upload Theme.
5. Click Browse Locate blogdesk.zip Theme in your computer.
6. Select blogdesk.zip and click Install Now.

Approach II : Upload and install theme through FTP client

You can use FTP client like FileZilla to connect your web server.

1. Unzip blogdesk.zip to your Desktop.
2. Using an FTP client to access your host web server, go to /wp-content/themes/ and upload your new copy of Blog Desk Theme.
3. Now, log into the WordPress Dashboard with your login details.
4. Select the Appearance panel, then Themes.
5. You will see the theme in the list.
6. Then click Activate button.
7. Now the theme will be activate and go through the following options to set up the theme step wise.

Theme Activation

After successfully installing the required theme, you need to activate your theme. Follow the given steps to activate the Blog Desk theme.

1. Select the Appearance panel, then Themes.
2. You will see the Blog Desk theme in the list.
3. Then click the Activate button.
4. Now the theme will be activated and go through the following options to set up the theme stepwise.