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Windows Security

Security Architecture of Windows  There are three components of Windows Security:  LSA (Local Security Authority)  SAM (Security Account Manager)  SRM (Security Reference Monitor)

LSA (Local Security Authority)  LSA is the Central Part of NT Security. It is also known as Security Subsystem. The Local Security Authority or LSA is a key component of the logon process in both Windows NT and Windows 2000. In Windows 2000, the LSA is responsible for validating users for both local and remote logons. The LSA also maintains the local security policy.
 During the local logon to a machine, a person enters his name and password to the logon dialog. This information is passed to the LSA, which then calls the appropriate authentication package. The password is sent in a nonreversible secret key format using a one-way hash function. The LSA then queries the SAM database for the User’s account information. If the key provided matches the one in the SAM, the SAM returns the users SID and the S…

Control media players by gesture using webcam

Now you can control media players by simple gestures using your webcam.........
A software named flutter comes with this feature and it is also absolutely free...... 
It is available for both windows and mac
You can download it from thier official site:- https://flutterapp.com/
Here are some of its great features.....





You can try it yourself . It is absolutely free...

How to Remove a Virus Using Command Prompt

Virus is a computer program that can copy itself and infect your computer. These viruses can spread via USB/flash drive or from one computer to other computer by few written codes. There are many antivirus software available to remove viruses from computer. But there are some viruses or suspicious files which can’t be removed by any antivirus software. Some suspicious files such as autorun.inf initiate all the viruses in pc. These files must be removed for safe operation of your pc, because they may lead to data loss, software damages etc. Such viruses and files can be removed by using cmd. In this article we will discuss how to remove a virus using command prompt. Following steps can be used to remove a virus using command prompt from your computer.
   Go to start menu and type “cmd” in the search box or Start>all programs>accessories>command prompt.



Open the infected drive such as write , g: to go to G drive.Now type dir/w/a . It will show all the files of the drive includin…

How to Change Processor Name Permanently

It is very easy to change your processor name permanently by creating a registry key and placing a shortcut to it in the windows start up folder. To do so, just follow the steps given below:-
Steps :-
1.  Open Notepad.

2.  Copy and paste the exact code given below:-

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0]"ProcessorNameString"="My Processor name 50000MHz"

To change the processor name, edit the part of the code given in blue. Also understand that \0 in the above code should only be present if Windows store your processor name at that location. Please open Registry Editor and navigate to the above mentioned keys to check whether or not to include the \0.

3.  Click on File Menu, click on Save As and select "All Types" in Save as Type option. Save the file as ProcessorNameChange.reg or *.reg.

4.  Create a new shortcut on your desktop. Enter regedit / S "Location of the .reg file" as the locatio…

How to Set a Video as Your Desktop Wallpaper with VLC

Are you tired of static desktop wallpapers and want something a bit more entertaining? Today we’ll take a look at setting a video as wallpaper in VLC media player. Download and install VLC player. You’ll find the download link below. Open VLC and select Tools > Preferences.

On the Preferences windows, select the Video button on the left.


Under Video Settings, select DirectX video output from the Output dropdown list.

Click Save before exiting and then restart VLC.
Next, select a video and begin playing it with VLC. Right-click on the screen, select Video, then DirectX Wallpaper.

You can achieve the same result by selecting Video from the Menu and clicking DirectX  Wallpaper.

If you’re using Windows Aero Themes, you may get the warning message below and your theme will switch automatically to a basic theme.
After the Wallpaper is enabled, minimize VLC player and enjoy the show as you work.


When you are ready to switch back to your normal wallpaper, click Video, and then close out of VLC.


Occas…

Make a private folder

To make Private folder which nobody can open, delete, see properties, rename. To make such a folder you need to make a folder with any name. For example- manthan on desktop. And then open command prompt and then type the following command on the screen.
Then type

Cd desktop

Cacls folder /E /P everyone:n

And hit enter the folder is locked
To open the folder just: replace :n with : f
And the folder is opened

Done......

Creating WiFi Hotspot Network in windows 8,8.1 and 7 using Command Prompt

Step 1: To Create WiFi Hotspot in Windows 8,8.1, Windows 7 PC
First you need to know that whether your PC hardware supports hotspot feature or not. To check this follow the instructions open your command prompt in administrative mode(if you don’t know this post your comment i will tell you)Enter this command  :::   netsh wlan show drivers
If it show “yes” as you can in image you can create wifi hotspot in your PC.Go ahead you’re almost done.If it shows No you PC can’t create hotspot.Don’t close your command prompt until i say close it because we need it again. Step 2 : To Create WiFi Hotspot Network in Windows Laptops
Enter the below command (your CMD must be open in administrative mode) netsh wlan set hostednetwork mode=allow ssid=(Name of wifi here) key=(Your password here) Hit enter then you will see like in below image.If you see image like below then your doing right.Now your hotspot is activated in your PC.

Here FastTechBuzz.com is my WiFi name and FastTechBuzz is my password.You ca…

Create Text Speech Program using Notepad

This is an amazing trick. By using this trick you can make a program to speak whatever you type. This trick is working on all Microsoft operating system and does not require any programming skills. You have to follow just simple steps and your own Text to Speech software will be ready. If you show this software to any of your friends he will be certainly impressed with you . Just follow the step given bellow:-
1. Open Notepad and copy and paste the following code into it

Dim message, sapimessage=InputBox("What do you want me to say?","Speak to Me")Set sapi=CreateObject("sapi.spvoice")sapi.Speak message

2.Now save the notepad file with the name speak.vbs at your desktop.
3.Now double click on speak.vbs type in the box whatever you want your computer to speak for you.
Its a really funny trick to impress everybody with your computer skills.....

Make simple virus with notepad

Virus writing code..!! Friends want to play with your friends computer..?

If yes then start reading this post.

In this article i came with new pranks (or) tricks (or) similar to virus creating ..
ya it's acts like a virus but not virus it's a simple programme.

Materials: NOTEPAD

By using only notepad you can create your own virus don't worry it doesn't effect your PC.

Ok the below are the codes of Virus like acting.

* Convey your friend a lil' message and shut down his / her computer:

Type in notepad:

@echo off
msg * I don't like you
shutdown -c "Error! You are too stupid!" -s


Save it as "Anything.BAT" in All Files and send it.


* Open Notepad continually in your friend's computer:

Type :

@ECHO off
:top
START %SystemRoot%\system32\notepad.exe
GOTO top


Save it as "Anything.BAT" and send it.


* Toggle your friend's Caps Lock button simultaneously:

Type :

Set wshShell =wscript.CreateObject("WScript.Shell")
do
wscript.sleep 100
wshshell.sendkeys…

Use your USB pendrive as a Virtual RAM

Have you ever thought that you can use your USB pen drive as your computer's RAM? I will tell
you how to do this. It is very very simple. The fact that it is so simple is because Windows 7 and
 Windows Vista both comes with a function called "ReadyBoost" which allows us to use our
 USB as System Virtual Memory. There is nothing much to do here. Just insert the Formatted
 Pen drive, Select Properties and go to the "ReadyBoost" tab, from there select "Use This 
Device", select the maximum memory available and click on apply. this ought to make it as a
 virtual system memory

                             .

How To Hide Files Behind JPEG Image

Hiding files by some sort of software has been a very common way till now, but if you are looking for something different you can do it by hiding a file behind a jpg image. It is a quite secured way to hide a file behind JPEG image because none will think about the existence of a file inside a jpg image. It is also free from the hazards of installing those software and consequently nobody will notice there is a secret file hidden behind a jpg picture file.
But here I am going to introduce another interesting way. You can use this simple trick to hide any kind of file like txt, mp3, exe, avi or whatever else. Besides this you can hide multiple number of files behind a single jpg file. When any one will see the picture he/she will just consider it as a picture and even if he/she double click on it then the picture will be opened as normal. Isn’t it sounds interesting? To execute this task you must need WinZip or WinRar to be installed in your PC. You can download it absolutely free from …

How To View All Saved Passwords in Google Chrome

When you log in a website for the first time, Google chrome ask you to save the username and password so that next time you log in ,you won't need to fill them again.This option is activated only if you click on "Save password" when browser ask you for it.
  However later on if you need to view the passwords or want to remove the password for a website,you might find it difficult.In this post I will tell you how to manage passwords stored in Google chrome.
 Open Google Chrome and go to settings. Click on advanced tab . Under password and forms ,select manage saved passwords. A new window will open that shows saved passwords for different websites. You can see the password for a website by selecting it and clicking show button. If you want to remove saved password for a website simply click on cross. It also shows a list of websites that you chosen as 'never save password '. 
Done....

How to Hide any Local Drive using Command prompt

Today Computer World tutorial is about how to hide a local drive without any 3rd party software. There are lo…ts of free and payable software’s available to hide local drive, but I’m not gonna talk about hide a local drive using a software. In this tutorial I’ll show you an easiest way to hide local drive without using software. This will save your both money and time.
There are 3 methods available to hide a local drive without using any software
1. Hide a drive through gpedit2. Hide a drive through regedit3. Hide a drive using command prompt
 Now Im covering, command prompt way of doing it. So lets see how to do.

How to Hide a Local Drive using command prompt?

1. Click on Start - Run

2. In Run box type cmd and hit Enter. Now Command Prompt window will appear.

3. In command prompt, type diskpart and hit Enter.

4. Then type list volume and hit Enter.


Now it will display the list of all your computer drives details.

5. Then type the Drive Letter which you want to hide.
If you want to hide volume …

How to Create a Password Protected Folder without any Extra Software

There are a lot of methods that you can use to create a password protected folder, most of which require the use of some third party software. Using this neat method you can hide your folders with a quick batch script. It’s important to note that this will not actually conceal your data from somebody that knows what they are doing. Note: if you are a beginner you should be careful with this script Create Your Password Protected Folder
Before you get started you need to create a folder that will house your password protected folder, this is just an ordinary folder and can be located anywhere and named anything. Navigate into your newly created folder and create a new Text Document. This can easily be done from the context menu.
Open the document, now paste the following code into the contents of the document:
cls @ECHO OFF title Folder Private if EXIST "HTG Locker" goto UNLOCK if NOT EXIST Private goto MDLOCKER :CONFIRM echo Are you sure you want to lock the folder(Y/N) set/…