Sharepoint 2013: “Access Denied” Error Message While Activating A Timerjob Site-Feature or Custom Web Part Feature

Error:

ULS: Access denied. w3wp.exe (0x1E30) – 6615 – Critical under /_layouts/ManageFeatures.aspx?Scope=Site

Getting a error message while activating a timerjob site-feature (on a production system with uac) as farm and local administrator on a sharepoint site.

Solution:

1) Execute this powershell script as farmadmin:

function Set-AccessDenied-False()
{
# load sharepoint api libs
[System.Reflection.Assembly]::LoadWithPartialName(“Microsoft.SharePoint”) > $null
[System.Reflection.Assembly]::LoadWithPartialName(“Microsoft.SharePoint.Administration”) > $null# get content web service
$contentService = [Microsoft.SharePoint.Administration.SPWebService]::ContentService
# turn off remote administration security
$contentService.RemoteAdministratorAccessDenied = $false
# update the web service
$contentService.Update()

}

Set-AccessDenied-False

2) App pool recycle or iisreset

3) Active your feature again