Can't remove iis from Windows Server 2012 R2

I'm trying to uninstall IIS from Windows Server R2. I tried Service Manager -> Remove Roles and Features, uninstalling ran, the restart computer, but it's still there. I tried also to do it by PowerShell:

Import-Module ServerManager    
Remove-WindowsFeature Web-Server -restart

but without success too.

I think some local services prevent uninstalling, I should disable them, but not sure which.

Solution 1:

If you have installed the large Update KB2919355 install the following Update to fix the issue:

You are unable to uninstall IIS after you install KB2919355 in Windows 8.1 or Windows Server 2012 R2
http://support.microsoft.com/kb/2957390/en-us

Consider the following scenario:

You have a computer that is running Windows 8.1 or Windows Server 2012 R2.
You have update 2919355 and Microsoft Internet Information Services (IIS) installed on the computer.
You try to uninstall IIS.

In this scenario, the uninstallation fails. Additionally, IIS is rolled back and may not function correctly.

To resolve this issue, install the update that is described in this article before uninstalling IIS.

Download:
http://www.microsoft.com/downloads/details.aspx?FamilyId=90315dce-b104-4387-a7b8-27e4d4a699aa