If you get the message “It is impossible to change document root because there are web applications installed on this website” when trying to change the root folder in plesk, try this workaround.

• Rename your domain from mydomain.co.uk to oldmydomain.co.uk
• Create a new hosting for mydomain.co.uk
• Point it to the folder you wish to use
• Add any subdomains you had and point them to their new or original folders .