Revover the files from harddisk or usb drives

Can we recover the files that have been deleted or recover the entire drive even it is formatted ?
Answer is Yes and No.
Before going to the methodology of recovering , let us understand what happens when we delete something.
As we all know that the data is stored in the form of 0's and 1's .
If any file is to be deleted, general convention is that all 0's and 1's should be converted to 0's but don't you think it is time taking process . so when you delete the file(s) or format , then the master file table reference, which merely tells the operating system where the file was located gets removed. Essentially, you're only removing the map to the data—not the data itself—while also giving the operating system permission to overwrite that area of the hard drive.so the answer is YES as it allows us to recover the data.
How to recover the data ?
Download test disk (http://www.cgsecurity.org/wiki/TestDisk) and follow the instructions in the site
Answer is No as the entire 0's and 1's are converted to 1's if your not doing quick format .

Files getting disappeared in removal drives

In present days it has been observed that many of the removable drives (pen drives, memory cards) when removed from some of the systems ,the files in it gets disappeared but the properties of the drive shows some size is occupied by the files . u can recover the disappeared files by opening computer , then opening the removable disk drive and typing *.* in the search box .The files will be displayed and select all the files ,cut and paste the files in the removable disk drive location.
Refer below if u want to know why it happens
The files which appeared to be disappeared were moved to a folder named space (which can be obtained by typing Alt+255 or Alt + 0160) which is different from space generated by pressing space bar(This space cannot be used to name a folder as folder name doesn't contain spaces) and the graphical view of folder usually yellow is changed to white which in turn makes the folder invisible.Finally, u are typing *.* in the search bcoz * is a wildcard character which stands for multiple characters in windows platform.

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Setting up XAMPP

XAMPP is the most popular PHP development environment .Infact it is a Apache distribution containing MySQL, PHP, and Perl .

This post describes of basic installation of XAMPP in windows and Linux.
If there are any problems in installation
Visit   http://devendradora.blogspot.in/2015/02/problems-in-installation-of-xampp.html

Setting up of environment

1) Download the software from https://www.apachefriends.org/index.html
    ** You can find the software for most of the os like linux based (ubuntu,fedora) ,Windows , OSX etc. (For 32 bit systems choose x86 file and x64 file for 64 bit systems)

For windows OS
2) Once your download is complete, install the program, click on Run.

3) Accept the default settings and click on NEXT ....and then on Finish.

4) Now open Xampp control panel .

5) Start the Apache and MySQL . You can also start the other components, if you want to use them.

6) Open  any webbrowser(Mozilla , Chrome ,opera) and type localhost or 127.0.0.1 in the address bar .

7) A page appears that offers you to choose language . Click on the language of your preference.

8) Welcome page of xampp is displayed.  

For more details visit http://www.wikihow.com/Install-XAMPP-for-Windows

For Linux based OS

2)Once your download is complete, navigate to the location of your downloaded  file say the file name is xampp-linux-x64-5.6.3-0-installer .
If your system is dual boot with windows make sure that you move the downloaded file to the location which is only used by linux as there may be some permission issues if it is in shared location of windows and linux.

Open terminal (CTRL + ALT + T ) and change your directory to specified location . For e.g  cd Downloads

3)Make the file executable  
  sudo chmod +x   xampp-linux-x64-5.6.3-0-installer 
**sudo means root access ,+x means executable 

4) sudo ./ xampp-linux-x64-5.6.3-0-installer  


5) Accept the default settings and click on NEXT ....and then on Finish.

6)To start Xampp (basically called lampp in linux)

 sudo /opt/lampp/lampp start

7) Open  any webbrowser(Mozilla , Chrome ,opera) and type localhost or 127.0.0.1 in the address bar .

8) A page appears that offers you to choose language . Click on the language of your preference.

9) Welcome page of xampp is displayed.  

For more details http://www.wikihow.com/Install-XAMPP-on-Linux

Problems in installation of XAMPP ?
Visit   http://devendradora.blogspot.in/2015/02/problems-in-installation-of-xampp.html

If everthing goes fine until now then you have installed XAMPP successfully.

For Windows OS 
a) Navigate to installation directory of Xampp and open htdocs.
 eg.  c:/>xampp/htdocs
  ** htdocs : It is the location where you can place your various web projects.

b) Create a folder named say webdev

c) Create a sample html or php file say  login.php or login.html

d) Open  web browser and type  
localhost/webdev/login.php or 127.0.0.1/webdev/login.php in the address bar 
e)Your web page gets displayed.


For Linux OS 

a) Navigate to installation directory of Xampp and open htdocs.
 eg.  open terminal CTRL+ ALT + T and then type following commands

       cd /opt/lampp/htdocs

  ** htdocs : It is the location where you can place your various web projects.

b) Create a folder named say webdev
     mkdir webdev
     cd webdev

c) Create a sample html or php file say  login.php or login.html

d) Open  web browser and type  
localhost/webdev/login.php or 127.0.0.1/webdev/login.php in the address bar . If access denied then in the terminal , type 
   chmod +755 webdev   

e) Your web page gets displayed.






 

Problems in installation of XAMPP ?

Some common Errors:

a)Apache shutdown unexpectedly.
This may be due to a blocked port, missing dependencies.
Possible Solutions:
Most of the times these errors are due to the same port (Default :80) is used by some other services say Internet Information Services (IIS) ,Skype etc.

Possible solutions :

So either these services can be turned off or port of the apache should be changed to solve the above the problems.

Method1 :
Steps :
-> open your xampp control panel then click its "config"
-> choose the "Apache (httpd.conf)" and find this code below and change it into this one:
# change this to Listen on specific IP addresses as shown below
# to prevent Apache from glomming onto all bound IP addresses.
# Listen 0.0.0.0:80
# Listen [::]:80
Listen 80
->save it (ctrl + s)
->Click again on config
-> choose "Apache (httpd-ssl.conf)" find this code below and change it again:
# Note: Configurations that use IPv6 but not IPv4-mapped addresses need two
# Listen directives: "Listen [::]:443" and "Listen 0.0.0.0:443"
# Listen 0.0.0.0:443
# Listen [::]:443
Listen 443
->save it (ctrl + s)

Method 2 : Change the port 80 to some other port say 81
steps :
-> open your xampp control panel then click its "config"
-> choose the "Apache (httpd.conf)"
->Change line
Listen 80 to Listen 81
-> Change line
ServerName localhost:80 to ServerName localhost:81
->start the apache

Method 3 :Turning off the IIS server
Steps :
-> Go to the "control panel" -> "Programs & Features" -> "Turn Windows On or Off".
-> Uncheck your "Internet Information Services" then click ok.
Still doesn't Work ?
No problem ,have you installed any virtual machines such as vmware ?

Method 4:
If you have VMWare Workstation installed , the option to share VM's is listening to port 443. That is preventing an Apache-server to start (xampp).
steps:
-> open vmware software
-> Choose Edit > Preferences > Share VM's
and change 443 to some other value for instance
->Start the apache server

Hope this works !!!

Problems with computer ?

Does ur system slow down or struck when playing games ?
Facing problems with installing os ?
Do u want ur System to welcome with ur name as audio voice ?

Ever you thought of naming a file/ folder with a space as its name?
Want to Know if someone is hacking your computer ?
Is ur computer secure ?
Is your system or mobile is attacked with virus ?
Do u have more than one computer and don't want to buy multiple licenses for the softwares for each computer ?
Is the size of the RAM(usually in 4GB or above capacity RAM) that is seen in your system properties is less than the actual size?
Are u giving ur system to anonymous persons ?
Do you want to develop a webpage or website and have no required skills in Web programming like HTML, CSS, JAVASCRIPT ?
Are u allowing ur browsers to remember the passwords?
Is your antivirus program monitoring ur pc properly?
Do u want to know who used your pc in your absence and What did he do in ur pc?
Do u want to speed up ur system ?
Problems with dual booting??
Have u installed more than one os and deleted one of the os but when ur system starts the deleted os is also seen??
Is ur system takes more time to access some files?
Do u want to change the partition of hard drives without formatting??
Do u want to make fun with ur friends by displaying the password while they enter???
Not able to configue server ?
To know and explore the solutions to above and related questions and stay tuned to the page
https://www.facebook.com/csedevgroup
http://devendradora.blogspot.in/

Happy Birthday Firefox !!!

Very happy to be a part of such a large open source community.
Its time to celebrate that for 10 years Firefox has been the only choice that is truly independent, that doesn't answer to industry, shareholder or any other corporate interests. ‪#‎ChooseIndependent‬ ‪#‎fx10‬
Join firefox student ambassdor https://affiliates.mozilla.org/referral/68863/
Download firefox https://affiliates.mozilla.org/referral/68861/
Download developer firefox https://www.mozilla.org/en-US/firefox/developer/

Why contribute to Mozilla ?
First of all Mozilla is a wider open source community in the world.Open source is that where one can explore many new things like view source code of any open source project like Firefox browser ,Firefox os and get recognization in the community.
Advantages
Great Opportunity to Learn Something New
Collaborate with Really Smart People
Interesting and Challenging
It Looks Good on a Resume
What can I get by contributing ?
Explore many new things ,get recognization in the community , get splended gift packages , get a free ticket to any Mozilla related events, get a intern. Moreover as get a job easily as more companies look for if you are a open source contributions before.
How to contribute to Mozilla ?
There are many projects for which you can contribute to Mozilla some of which are as follows:
Coding ,Add ons,Web development,Localization,Documentation,Education and many more

Developing Addons for firefox browser

Steps to be followed :

1) Install python

2)Download Addon sdk
https://addons.mozilla.org/en-US/developers/builder

3) Addon sdk Installation on windows

Extract the file contents wherever you choose, and navigate to the root directory of the SDK with a shell/command prompt. For example:

c:/Mozilla> cd addon-sdk

Then run:

bin\activate

Your command prompt should now have a new prefix containing the full path to the SDK's root directory:

(C:\Users\mozilla\sdk\addon-sdk) C:\Mozilla\addon-sdk>


or

Addon sdk Installation on Mac OS X / Linux

Extract the file contents wherever you choose, and navigate to the root directory of the SDK with a shell/command prompt. For example:

tar -xf addon-sdk.tar.gz
cd addon-sdk

Then run if you're a Bash user (most people are):

source bin/activate

And if you're a non-Bash user, you should run:

bash bin/activate

Your command prompt should now have a new prefix containing the name of the SDK's root directory:

(addon-sdk)~/mozilla/addon-sdk >


4) Develop the addon

Initializing an empty add-on

In the command prompt, create a new directory. Navigate to it, type cfx init, and hit enter:mkdir myaddon

cd myaddon 

cfx init

Navigate to lib folder of addon you have created and add the follwing code to main.js


data = require("sdk/self").data
 
var TextPanel = require("sdk/panel").Panel({
  width:325,
  height:330,
  contentURL: data.url("Flip-text.html")
});
 
require("sdk/widget").Widget({
  id: "open-textupsidedown-btn",
  label: "TextUpsideDown",
   contentURL: data.url("./fliptext.PNG"),

   width: 30,
  panel:TextPanel
});

Now,navigate to data folder and create a html file say  Flip-text.html





Here are the few cfx commnads which may be useful :
  cfx init
  cfx run
  cfx test
  cfx xpi

Few links useful for you
 Addons reference
https://developer.mozilla.org/en-US/Add-ons/SDK/High-Level_APIs/panel 

Bug fixing
https://developer.mozilla.org/en-US/Add-ons/SDK/Guides/Contributor_s_Guide/Getting_Started

Links:
=====
[1] http://www.joshmatthews.net/fosdem/
[2] https://speakerdeck.com/sankha93/build-your-own-firefox
[3] https://developer.mozilla.org/en/Introduction
[4] http://www.joshmatthews.net/trainingmontage/
[5] http://whatcanidoformozilla.org/
[6] http://www.joshmatthews.net/bugsahoy/
[7] https://developer.mozilla.org/

Struck with installing os ?

-

Hard disk drive not detecting
-os promting that the partition is mbr and cannot be installed
-partion table invalid

Here are the few things u can try...
-> Hiren's bootcd

-> Test Disk

-> use Active@ Boot Disk creator
it allows to recover partition table or any data on the disk ,disk clean up

-> gparted live disk
It allows you to create partition table ,and choosing of filesystems such as NTFS,FAT32,exFAT,ext4,ext3........

Files getting disapeared ??

In present days it has been observed that many of the removable drives (pen drives, memory cards) when removed from some of the systems ,the files in it gets disappeared but the properties of the drive shows some size is occupied by the files . u can recover the disappeared files by opening computer , then opening the removable disk drive and typing *.* in the search box .The files will be displayed and select all the files ,cut and paste the files in the removable disk drive location.
Refer below if u want to know why it happens
The files which appeared to be disappeared were moved to a folder named space (which can be obtained by typing Alt+255 or Alt + 0160) which is different from space generated by pressing space bar(This space cannot be used to name a folder as folder name doesn't contain spaces) and the graphical view of folder usually yellow is changed to white which in turn makes the folder invisible.Finally, u are typing *.* in the search bcoz * is a wildcard character which stands for multiple characters in windows platform

Want to browse anything on the internet ?

We are all aware of the fact that we have no freedom in accessing some of the sites and even some of the sites are blocked from accessing in some of the countries ....In order to make all the sites acessible , u can download a software and  enjoy the freedom of browsing ,but downloading of this software is also blocked.
so , inorder to facilitate the downloading the software visit  https://docs.google.com/file/d/0B_IS9V1cHAc_S0FfVGVPdXNZRG8/edit?usp=sharing
and download the software....
Here are the few steps u should follow after downloading the software
->Extract the file to a particular location by clicking on it  and selecting the desired location
->open the file (screen shot is shown over here )

->click on options and then choose proxy settings and enter the proxy settings if u know in manual proxy settings if u know (recommended) or choose auto detect proxy 

->click on OK ,OK and status of connecting to the server is displayed over there .Make sure that in status "Successfully connected to server is displayed " else click retry

->Now open the browser u want and enter the proxy settings as  127.0.0.1 in ipaddress or http proxy  and port as 9666  .......click ok .Now u can enjoy the freedom of browsing..

For more u can also visit  https://www.facebook.com/csedevgroup

Files disappered in removable drives ??

In present days it has been observed that many of the removable drives (pen drives, memory cards) when removed from some of the systems ,the files in it gets disappeared but the properties of the drive shows some size is occupied by the files . u can recover the disappeared files by opening computer , then opening the removable disk drive and typing *.* in the search box .The files will be displayed and select all the files ,cut and paste the files in the removable disk drive location.
Refer below if u want to know why it happens
The files which appeared to be disappeared were moved to a folder named space (which can be obtained by typing Alt+255 or Alt + 0160) which is different from space generated by pressing space bar(This space cannot be used to name a folder as folder name doesn't contain spaces) and the graphical view of folder usually yellow is changed to white which in turn makes the folder invisible.Finally, u are typing *.* in the search bcoz * is a wildcard character which stands for multiple characters in windows platform

Fast start-up is achieved in Windows 8 and the impact of fast start up when window8 is dual boot with other os say ubuntu ?

How  fast start-up is achieved in Windows 8  and impact of fast start up when window8 is dual booted with ubuntu ?
 Fast start-up  (also called ‘hybrid boot’), which is based on the ‘hibernation’ feature that came with older versions of Windows. ‘Hybrid boot’ lets Windows 8 to boot really fast, and it is also enabled automatically when you shut down your computer too.
Hibernation feature just places the data on RAM on to the harddisk drive before shutting down.This results in a significant reduction in startup time. It’s faster because resuming the hibernated system session is comparatively less work than doing a full system
initialization.This is the reason why hibernation option is not seen on power menu.
   However when windows 8 is dual boot with say ubuntu os, after shutting down Windows 8, if the next time you boot into Ubuntu and tried to access Windows 8′s OS partition, then it will give you a warning saying that, that partition is hibernated etc and won’t let you mount it.
   This problem can be solved by either of the ways
--->Disable Turn on fast start up (search for power options > choose what the power buttons do on the left >click on change settings that are currently unavailable >uncheck the Turn on fast start up ......u can aslo turn ON the Hibernation to be shown on the power menu
--->press and hold the ‘Shift’ key while choosing ‘Shut down’ in Windows 8 as this too disables the ‘fast start-up’ for that session.
--->You can reboot back to Windows 8 and then choose ‘Restart’ as when restarting, Windows 8 automatically disables the so called ‘fast start-up’ feature.(This is the reason why restart in windows takes moretime to boot)
--->you can change a setting in Ubuntu so it will manually remove the ‘hiberfile.sys’ file on the OS partition, thus enabling you to access its data with read-write permissions.

Develop addons for Mozilla Firefox

Wow it has been a great experience, developing addons for Mozilla Firefox and the developing addons was much easier as compared to other platforms and was very happy to be a part of such a huge open source community.
Here the two addons developed for Mozilla Firefox browser
1) HumanCharacterGuess Addon (You can know about who u are by entering date of birth) Download link https://addons.mozilla.org/en-US/firefox/addon/humancharacterguess/

2)FlipChat Addon (It converts the text entered upside down and reverse) Download link https://addons.mozilla.org/en-US/firefox/addon/fliptextchat/

Does system slow down or struck when playing games ???

Does ur system slow down or struck when playing games on battery power as compared to system connected to external power supply ?
Do u know why ?
It is due to the fact that the system's power and bios settings decrease the clock speed to increase the battery life and performance and if there are 2 GPU's (Intel on-board graphics and any other graphic card ),then the system on battery tend to use Intel on-board graphics as much as possible....
Of course , u can change the bios settings to increase the clock speed and to use both graphic cards but it may overheat the components ,decrease its life cycle and may void warranty.(over clocking is not recommended)

Build applications for Firefox OS

Want to build applications for Firefox OS?
Building apps for firefox os made easier than any other platform...
no developer kit needed,moreover no developer fees ,no new programming languages to learn. You can start building apps for Firefox OS today, using nothing more than HTML, CSS and a little JavaScript.
By the way i started developing app for firefox os this evening and right now ,my app HCG is in the firefox marketplace .Download link https://marketplace.firefox.com/app/humancharacterguess/

Infact,the main idea behind Firefox OS is simple: building apps for the mobile web using exactly the same tools and languages as the desktop web.No special APIs, no native code, no special programs or tools to "extend", "accelerate" or "optimize" HTML or CSS

Is your system or mobile is attacked with Shortcut virus ?

you have made a full scan and deleted the virus , but the files that were on the disk does not get appeared and the properties of the disk or system shows some size is occupied by the files. u may think up of getting a restoring software and restore the files but before getting the restoring software just try this :
->open the any disk , pen drive locations
->In the search box ,type  *.jpeg or *.jpg  or *.mp3 or *.3gp  and  it can be any format of the file which u think would exist in that drive
case 1:
->If the files that were not displayed before appears in the search , then right click the file and select open location
->select all the files in that location and move them to another location
case 2: go to tools> folder options  >view >show hidden files

Hope this may help you to get the files back......

Send a larger size files or softwares

Do u want to send a file which has larger size or send a executable program files ?
U know that it is not possible to send a file of a larger size or executable files as attachments in email.
so use a online storage media like Google drive , Skydrive ........
which allows you to upload files of larger sizes or executable files or any software and share the link of uploaded file (privacy : public or private....) with ur friends.
Now the uploaded file is readily available for download depending on the privacy settings of the file.

naming a file/ folder with a space as its name

Ever you thought of naming a file/ folder with a space as its name?
yup...u may have tried it, but all in vain.
Here is the way u can try it out
->Right click the file and select Rename
->press ALT+0160 (If this doesn't work press ALT+Fn +0160 )
(Remember to keep the ALT button pressed down while typing the numbers).
This is allowed bcoz ALT+0160 makes a space that is not the same as a normal space.

Want to develop a webpage or website???

Hey do you want to develop a webpage or website and have no required skills in Web programming like HTML,CSS,JAVASCRIPT ?
yup you can do it by
--> searching x-ray goggles or hackasaurus in any of the search engines(google, bing........)
-->In the page that opens ,drag x-ray goggles button to the bookmark bar
-->open any webpage that you want to modify and click on the x-ray goggles that u have bookmarked earlier
-->click on the portion of the screen u want to modify and the window appears where you can replace the text or image with ur own text or image and then click ok
-->now u can publish your newly created website by their server or download the source code and publish it urself.
It is done....................

-------->>This is a javascript based app developed by miozilla foundation (open source) which works better in mozilla firefox and needs ur pemission to work better i.e to allow javascript in chrmoe,IE............

shorcuts in windows........

CTRL+A (Select all)
Shift + (left arrow /right arrow/down arrow/up arrow ) . selecting text
CTRL + C (Copy)
CTRL+X (Cut)
CTRL+V (Paste)
CTRL+Z (Undo)
Delete (Delete)
Shift+Delete (Delete the selected item permanently without placing the item in the Recycle Bin)
Ctrl + mouse click on a file (for multiple selection of files)

F1(Help)
F2 key (Rename the selected item)
F3 key (Search for a file or a folder)
F4 key (Display the Address bar list in My Computer or Windows Explorer or Internet explorer)
F5 (Refresh)

CTRL+F4 (Close the active document in programs that enable you to have multiple documents open simultaneously)
Alt+Enter (View the properties for the selected item)
Alt+F4 (Close the active item, or quit the active program)
Alt+Spacebar (Open the shortcut menu for the active window)
Alt+Tab (Switch between the open items)
Shift (when you insert a CD-ROM into the CD-ROM drive (Prevent the CD-ROM from automatically playing)
Alt+Underlined letter in a menu name (Display the corresponding menu)

Win+D (Display the desktop)
Win+M (Minimize all of the windows)
Win+Shift+M (Restore the minimized windows)
Win+E (Open My Computer)
Win+F (Search for a file or a folder)
CTRL+Win+F (Search for computers)
Win+ L (Lock the screen )
Win+R (Open the Run dialog box)
Win+U (Open Utility Manager)