How do i fix Wp-Admin/Install.Php is Forbidden error?

It's been a long time since I used WP but, as I recall, install.php and the entire installation directory should be removed.

Your web site is configured to disallow access to any installation stuff (for security reasons).

-- sw

do you mean only wordpress directory?

As I recall, there’s an installer directory under the WP directory…there's some security check-up page that comes with a standard WP installation that recommends you remove the install directory & install.php.

As I said, I haven't used WP for a long time so my memory is fuzzy about this…

See: https://wpsmackdown.com/delete-unnecessary-wordpress-files/

-- sw

Change the group permissions to ALL your WP files your-user-name:www-data:

chown -R your-user-name:www-data directory with WordPress

i.e. chown -r me:www-data wp1

{editoria}

I always always build out a WordPress site in either a sub-directory or a sub-domain. I name mine "wp1" for first site. If later on I want to radically change it I'll usually build a new one in a "wp2" sub-directory. The key is to use a 301 redirect in your .htaccess file in the root directory like this:

Redirect 301 /index.php https://www.xxx.com/wp1/

{/editoria}

thank you @acanton77 and @stevewi. i removed existing wordpress directory completely and decided to set up wordpress according to this guide https://www.linode.com/docs/guides/install-wordpress-ubuntu-18-04/ but in 'configure wordpress' part it gave the same error 'Forbidden
You don't have permission to access this resource.

Apache/2.4.29 (Ubuntu) Server at www.homelistt.com Port 443'

Acanton77 can you tell which command should i write? because the commands in the guide didnt work.

and my permissions are like this https://bpa.st/GK3A