Disabling SharePoint integration

Hi I need some help

I have an SharePoint online Mapped as a WebDAV on my Machine,

however each time I tried to open a PDF, it shows a pop up of check out.....

I have read some forums where I was told to do an

Disabling SharePoint integrationhttp://www.adobe.com/devnet-docs/acrobatetk/tools/AdminGuide/planning.html#disabling-share point-integration

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Adobe Acrobat\11.0\FeatureLockDown\cSharePoint]
"bDisableSharePointFeatures"=dword:00000001

However the issue still persist.

I am using Adobe Acrobat XI 11.0.12