Beiträge von
Nicholas Dille

Expertenwissen von Nicholas Dille

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Second Prompt for User Credentials in Remote Desktop Services

In a recent deployment of Remote Desktop Services with Windows Server 2012, I experienced a second prompt for credentials. It occurred after successfully authenticating with Remote Desktop WebAccess  and launching a RemoteApp from the browser. This blog explains why the second prompt is shown and how to get rid of it.

What the user is experiencing

Launching a RemoteApp from WebAccess is usually a very simple thing to do. After logging on (see first screenshot below),

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Deploying Windows Server 2012 without Running the Installer

With the release of Windows Server 2012, I wanted to upgrade my test and demo environment as quickly as possible. As with many hosting offerings, I do not have physical access to my dedicated server but do get two hours of remote console access for free. Therefore, I needed a way to deploy Windows Server 2012. This article documents how I successfully installed Windows Server 2012 on the second hard disk from a running Windows Server 2008 R2.

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XenApp Session Timeouts Explained

In a centralized environment such as a XenApp farm, users share resources with one another. A thoroughly designed platform will be able to handle all prospected users as well as provide contingencies for failures and maintenance tasks. When sizing a XenApp farm, resources as well as licenses need to be calculated for the concurrently connected users (CCU) which may well be only a small fraction of the total number of users. From an architectural point of view,

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Windows Recovery Environment (RE) Explained

Windows Recovery Environment (RE) is based on the Windows Preinstallation Environment (PE) and can be extended to be a minimalistic system to recover a somehow broken systen. Windows RE is configured in the boot configuration data to be the failover system for the primary boot entry. If the boot loader fails on the default entry, it will automatically try to boot into the recovery environment.

Windows RE offers the following features:

  •  System Repair attempts to correct typical issues rendering the system unbootable,
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Making the Switch to UEFI

The most prominent reason for thinking about booting through UEFI instead of BIOS is the availability of large drives. BIOS requires a MBR (Master Boot Record) formatted drive which is inherently limited to 2 TiB. But there are more very good reasons for making the switch. In this article I will provide a brief comparison of BIOS and UEFI before explaining how to create bootable devices for UEFI and install Windows on an UEFI system.

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The Danger of Machine Account Password Changes

Every so often I am asked to help analyze weird issues when assigning group memberships or permissions – accounts are not found and the Event Log shows unsettling messages. Many of these situations can be traced back to the operating system using a different machine account password than the domain is aware of.

Yes, Machine Accounts Have Passwords!

Just like user accounts, a machine object in Active Directory has a password to identify the machine and to protect the machine account.