For safety I recommend you edit your post and remove the password. Send print screen of the error that we can help.

error

Thanks I know but it's a demo istallation I don't mind if people enter I prefer that someone help me in this error after I will change pwd.

Try to delete the jpg in media folder.

Do you solved the problem ?

I am facing to the same issue, I can't delete anything:
Request error: The URL returned a 404 (not found):
/umbraco/UmbracoApi/Content/DeleteById

Not yet, Cèdric.

Try this:

in your web.config under

<system.webserver>
<modules>

Should be around line 117ish

add this line:

<remove name="WebDAVModule" />

In my case the problem isn't resolved.

Thanks Per.

okey, do you know what kind of server you are running this on? IIS 8 maybe? - it seems like this is a general asp.net issue, and there is a fix listed here for it:

http://stackoverflow.com/questions/10906411/asp-net-web-api-put-delete-verbs-not-allowed-iis-8/18458139#18458139

Perfect I resolved thanks very much Per!

this is the solution!

http://stackoverflow.com/questions/10906411/asp-net-web-api-put-delete-verbs-not-allowed-iis-8/18458139#18458139

It works for me too.
In addition I changed the application pool from classic to integrated.

Related issue in 7.0.1: http://issues.umbraco.org/issue/U4-3426

Thanks Per & Lorenzo

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