Magic quotes problem with 4.4.9

I'm having a similar problem.

Joomla system information: Magic Quotes: On

I contacted my site host and they replied:

The magic_quotes_gpc directive is set to off in your local php configuration file (php.ini) which is used by your account whenever PHP is used for by your website. This configuration does not affect server side only scripts which default to our server settings. If your Joomla component installation checks using a website connection, the magic_quotes_gpc check will pass. If the installation runs php directly from the server it is checking the server value instead.

Unfortunately the server value cannot be modified on this server since it is a shared hosting server.

Do you have any advice?

I'm not exactly sure what they mean with the difference between "is run directly on the server" or "by using a website connection". PHP always runs directly on the server.
However I'm not a server specialist, I'm just glad my own server runs fine

I would understand it like this that when a PHP script is run by a cron job or CLI, it qualifies as "directly on the server". And if the script is initiated by a webbrowser like in Joomla, it's using a website connection.
So my understanding would be that it should be turned off in your case according to their sayings. But the Joomla backend probably calls them liars

I would check your .htaccess files in the Joomla root and the administration folder (if there are any). Maybe something is set there. Otherwise just ask the support again and they should explain you why Joomla shows it's on in the backend.

I'd check php.ini file in admin folder there also and probably manually set it to off. I've noticed that if php.ini file exists it overwrites some settings. even if they are not set.