Download Windows 10 Technical Preview ISO with Product Key

Follow these steps to download Technical Preview:

Sign up for the Windows Insider Program, if you haven't already.

Read the system requirements.

Click one of the Download links on this page to download a special
file—it's called an ISO file—that you can use to install the preview.

When the download is complete, transfer the ISO file to installation
media such as a USB flash drive or DVD.
Double-tap or double-click setup.exe from the installation media,
and then follow the steps.


Language English (United States)


Windows 10 Technical Preview (x64)

(3.92 GB)

SHA-1 hash value 6A95316728299D95249A29FBEB9676DED23B8BEB

Windows 10 Technical Preview (x86)

(3.01 GB)

SHA-1 hash value 1AE10947CC297AE299E1C81F95812EFBB5C84121

Wednesday by Prashant Shalgar · 0

Active Directory Components

The name for Microsoft directory service, similar to Novell’s NDS (Novell Directory Service). It is the Brian of the Windows Server Network. It’s a database that keeps track of a huge amount of stuff and gives us a centralized way to manage all our Networked machines, users, and resources.


  • A Database (NTDS.DIT) on a domain controller.
  • Based on X.500/LDAP.
  • Utilizes Kerberos.
  • Sync’s across peer DC’s (Replication).
  • Extensible
  • Interoperates with other domains/forests.

What is the basic requirement for Installing Active Directory?

- Server 2003,2008 or 2012 CD/ISO.
- NTFS file system (Partition)
- NIC Plugged into network.
- TCP/IP configured along with proper DNS if already available.
- Initiate DCPromo in Server 2003, 2008 but same is deprecated in Windows server 2012. you can use Server Manager to install or fire the binaries using Powershell.

Note: DCPromo launches the wizard that sets up Active Directory and promotes a Server to Domain Controller.


It expresses that every domain has exactly one parent, leading to its hierarchical structure.

And a bunch of Active Directory trees forms a forest.


A collection of computers and servers that are part of the same Centralized database.


Centralized User/Group authentication: The ability to log on one time and access resources throughout the domain.

Centralized Security: The ability to control the user/computer environment, from one computer across the whole network.

Searchable Database: Easily extending database which hosts resources including users, computers, shared folders, printers and more.

Very Scalable: Meant for both small and large organizations.

Required to reap all the benefits of Windows Server (2003, 2008 & 2012) and other Microsoft software products i.e., Microsoft Exchange which completely relies on Active Directory database.

Domain Controller:

A domain controller is a windows server machine that runs full-fledged Active Directory Domain services, you can have multiple domain controllers that all have copies of the same Active Directory database.

A domain controller usually has only two roles:

  • Active Directory Domain Services
  • DNS ( Domain Name System)


A windows server domain is a logical group of computers running version of the Microsoft windows operating system that share a central directory database. Machines are all named with a part of a domain name like “” (also called a “Suffix”) and are registered in the Active Directory Database so they can be managed.

Organization Units:

Keeping your objects Organized and are used to control what users and computers can and can’t do. It provides a place for User accounts, Computer accounts and groups to live.

It is used in place of creating multiple domains in an organization.

A container object that gives you more granular control over your environment.


  • Delegation of Authority (Permission)
  • Assigning Group Policy
  • Organization Control


They are Active Directory objects that allow you to provide and deny access to resources like Printers and Shared folders. Allows or denies access to network resources for users and computers.

Groups live in Organizational Units.

Group Scope Group Type
Domain Local Security
Global Distribution

A global group can be converted to local for permission and security granting purpose & vice-versa.

User Account:

An Active Directory Object that allows users to access network resources.

Computer Account:

And Active Directory object that allows AD to have security relationship within a computer and allows you to control what that computer does on the network.

Distinguished Name:

It’s the name of an object as it appears in the active directory database.



by Gyan Mainali · 0


Active Directory Database Partition and Structure

Active Directory Database Partition:
1.       Schema Partition: (Object Classes)
Only one schema partition exists per Active Directory forest. Schema partition is stored on all Domain Controllers within a forest. It contains definitions of all attributes and objects t that can be produced in the directory, and the rules for creation and manipulating them. Schema partitions information is replicated to all domain controllers in the attribute definitions.
·         It defines the Active Directory database for all the domains in the forest.
·         Defines all the objects in the Active Directory Database.
·         Changes to the Schema affects all domains in the forest.
·         Schema determines what can be stored in Database.

2.       Configuration Partition:

This partition contains data to deal with the configuration of the forest. Site information under sites and services is found here.

·         Information about Active Directory partitions is found here.
·         Data in this partition applies to all the forest.
·         Holds Active Directory structure sites, one partition in whole forest.

3.       Domain Partition:

Many Domain partitions can exists per forest, information about users, computers and organizational units.

·         It contains only domain data.
·         Active Directory Users and Computers data gets replicated to that domain only.

4.       Application Partition:

If any application wants to store information in Application Partition, it can create its own application partition to store information.
Example: Integrated DNS

·         There can be more than one application partition
·         Replication can be to any DC in the forest
·         It can be stored on one Domain Controller or all Domain Controller’s.
·         Application partitions store information about applications in Active Directory.

Note: If DNS (Domain Name System) is integrated with AD: Two partitions for DNS Zones is available
                All domain controllers and DNS servers in a forest receive a replica of this partition. A forest wide application partition stores the forest zone data.
                Unique for each domain

5.       Global Catalog:

It contains partial replica of all objects in the forest replicated to all Global Catalog’s in the forest. Global catalog is a distributed repository that contains a searchable, partial copy of evening object is every domain. This partition is stored on a DC designated as a global catalog server role., replication topology used is multiple master replication

·         It holds read/write attribute of its local domain, but readonly for forest domains.
·         Partial Attribute Set (PAS) Only limited set of attributes is included for each object.

Active Directory partitions divide up the AD Database for administration and replication accuracy.
Global Catalog
All GC's in the forest
All DC's in the forest
Any specified DC's in the forest
All DC's in the forest

Active Directory Structure
1.       Logical Structure: (Hierarchical Structure)
Contains Organization Unit (OU), Trees and Forest
2.       Physical Structure:
Sites (including Physical Internet Address subnets) and Domain controllers.

NTDS.DIT full form: New Technology Directory Service. Directory Information Tree

Tuesday by Gyan Mainali · 2

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