Windows server - /media is not writable
If you keep getting the /media is not writable error message either on our backend or on your frontend even if your user have full rights on that folder, make sure that the user have rights to read every folder above the /media folder.
Let's say that your website is located here: C:\sever\websites\yoursite\. In this case, you will need to give reading rights for both C, server, websites, yoursite for your user to be able to access the folder correctly. You can do this if you right click on the folder's name and choose Properties and go to the Security tab:
Select the group or user name which you would like to modify, then click on the Edit button. The only option you'll need to turn on is the "Read":
Click on Apply and change the permission for the other folders, too. After that, the error message will disappear.