Telnet client: Windows 2008 R2, 2012 Server, Windows 7, Windows 8, Vista

FREQUENTLY ASKED QUESTIONS (Windows)
Q: How to enable telnet command in Windows 2008 R2 server?

C:\Users\Administrator>telnet
"telnet" is not recognized as internal or external command,
operable program or batch file.
By default telnet is not preinstalled in Windows 2008 R2, Windows 2012 Server, Windows 7, Windows 8 and Windows Vista. You can install the telnet client with the command below

Applies to: Windows7, Windows Vista, Windows XP, Windows 2003, Windows 2008 R2 Server, Windows 8.
Install Telnet client using command line
C:\Users\Administrator>pkgmgr /iu:"TelnetClient"
Done, now wait for few seconds and try with "telnet" commands.... 

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Explain Windows Registry Hives: Windows Registry Tutorial

      Windows system registry is the database of all the settings, configurations and preference of all installed applications, user accounts, hardwares and overall settings in the operating system. Registry also contains the settings and preferences of each user account in the operating system. Whenever we make a change in the operating system like installation or uninstillation of softwares, modifying control pannel setings, system policies, user preferences, all the changes are also stored in the system registry.

      You can modify or edit registry by using any registry editor tools (eg: regedit). Go to "Run" and type "regedit" and you can get access to Windows Registry. You should have an administrator previleged user account to modify windows registry. And before modifying registry values and entries i strongly recommend to take a backup of current windows registry data.

Windows registry branches
The five main branches of windows registry are HKEY_CLASSES_ROOT, HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, HKEY_USERS, HKEY_CURRENT_CONFIG.

HKEY_CLASSES_ROOT
Contains information about all the file extension association maping for supporting grag and drop feature. Also contains preferences about Programatic identifier,Class ID, Interface ID, Windows user interface, etc.

HKEY_CURRENT_USER
Contains the informations about user profile of current logged in user. Including Logon names, Start menu settings, personalised settings, desktop settings, etc.

HKEY_LOCAL_MACHINE
Contains the information about softwares and hardwares. Including Hardware profiles, hardware device drivers, system RAM, start-up parameters, etc.

HKEY_USERS
Includes the user specific data like preferences of each user in the system.

HKEY_CURRENT_CONFIG
Stores the current using hardware profiles in the system. 

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Windows 7 BitLocker Setup With TPM

          BitLocker is one of the most powerful security feature in Windows 7 and Windows Vista. BitLocker allows the user to encrypt an entire drive in a computer.

The bitLocker uses AES encrypting algorithms to encrypting the drive and its files inside with TPM (Trusted Platform Module). This encryption ensure the files in the drive safe even if it is lost or stolen. You can use a password or smart card to unlock an BitLocker encrypted drive.

Steps to Enable BitLocker Encryption
Step1:Go to "My computer" Right click on a drive and click on "Turn on BitLocker..."

Step2:

Check "Use a password to unlock the drive" and input a new drive unlocking password.

Step3:

Select "Save the recovery key to a file" (for unlocking drive if you lost the password) and save the recovery key to USB storage or any other drives and click "Next"

Step4:
Now click on "Start Encrypting"  (take few minutes depending upon the volume of files)

And now the BitLocker Drive Encryption is enabled for the drive.

To unlock the Encrypted Drive and access files

Double click on the Drive and give the password (which you already set in step:2)
And click "Unlock"

BitLocker Management

             To manage BitLocker Encryption you need to right click on the BitLocker enabled drive and click on "Manage BitLocker" And there you can Change the BitLocker unlocking password, or completely remove BitLocker password, Smart card management, download or print recovery key file, and Enabling Automatically unlock this drive only on your computer. 

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