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Dimitris Tonias

G(r)eek IT Pro

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Active Directory

Document Active Directory using AD Topology Diagrammer

Document Active Directory using AD Topology Diagrammer

April 1, 2018

How to document an Active Directory infrastructure with Visio charts using the free Active Directory Topology Diagrammer tool. Read More

Configure Universal Group Membership Caching

Configure Universal Group Membership Caching

March 29, 2018

How to enable and configure Universal Group Membership Caching (UGMC) on a Domain Controller to authenticate users when a Global Catalog Server is not available. Read More

Forced removal of a Domain Controller from Active Directory

Forced removal of a Domain Controller from Active Directory

February 4, 2018

How to forcibly remove a failed Domain Controller from Active Directory and perform a metadata cleanup in Windows Server 2016. Read More

Identify Domain and Forest Functional Level of Active Directory

Identify Domain and Forest Functional Level of Active Directory

January 14, 2018

How to find out the Domain Functional Level (DFL) and Forest Functional Level (FFL) of Active Directory using the Windows Server 2016 graphical user interface and PowerShell. Read More

Add another Domain Controller (DC) on Active Directory

Add another Domain Controller (DC) on Active Directory

January 14, 2018

How to add an additional Windows Server 2016 Domain Controller (DC) on your existing Active Directory domain. Read More

Installing Active Directory on Windows Server 2016

Installing Active Directory on Windows Server 2016

January 14, 2018

How to implement a new forest and a local Active Directory (AD) infrastructure using Windows Server 2016 as your first Domain Controller (DC). Read More

Join Windows Server 2016 to an Active Directory domain

Join Windows Server 2016 to an Active Directory domain

December 29, 2017

How to join a Windows Server 2016 GUI or Core machine in a local Active Directory domain using the GUI, PowerShell, and SConfig. Read More

Join a Windows 10 PC to an Active Directory domain

Join a Windows 10 PC to an Active Directory domain

December 29, 2017

How to join a Windows 10 computer in a local Active Directory domain using the GUI and PowerShell. Read More

Before you join a machine to a local Active Directory domain

Before you join a machine to a local Active Directory domain

December 29, 2017

What are the basic requirements for joining a Windows computer or a Windows Server in a local Active Directory domain. Read More

Access is denied when you delete or move an OU to Active Directory

Access is denied when you delete or move an OU to Active Directory

December 15, 2017

How to override the Access is denied error when moving or deleting an OU in Active Directory in Windows Server 2016. Read More

In the Spotlight
Identify Domain and Forest Functional Level of Active Directory

Identify Domain and Forest Functional Level of Active Directory

  • Display confirmation dialog when deleting files on Windows Server 2016

    Display confirmation dialog when deleting files in Windows Server 2016

    October 3, 2017

    How to enable the confirmation dialog when deleting files before they reach the Windows Recycle Bin. Read More

  • Show disk performance metrics on Windows Server 2016 Task Manager

    Show disk performance metrics on Windows Server 2016 Task Manager

    September 9, 2017
  • Change network connection priority on Windows 10

    Change network connection priority on Windows 10

    September 11, 2017
  • Move sidebars to the right in Firefox

    Move sidebars to the right in Firefox

    August 20, 2017
  • Windows 10, choose which folders appear on Start

    Windows 10, choose which folders appear on Start

    August 24, 2017
  • Hide your email address from the logon screen in Windows 10

    Hide your email address from the logon screen in Windows 10

    September 19, 2016
  • Error opening Report Viewer on WSUS 2016

    Error opening Report Viewer on WSUS 2016

    April 30, 2018
  • Create, restore and manage snapshots on VMware Workstation

    Create, restore and manage snapshots on VMware Workstation

    September 3, 2017
  • Winamp window is gone, here's how to get it back

    Winamp window is gone, here’s how to get it back

    November 7, 2016
  • How to find the motherboard model on your PC

    How to find the motherboard model on your PC

    September 9, 2017

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