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February 14, 2012 / Karthikeyan Natarajan

Permanently delete a file (no trace, even file name)

If we delete a file using “Shift+Delete” key, the file contents and file name & directory structure can be recovered using recovery software like Recuva, Tuneup undelete etc.

What if we want to delete a confidential file such that the cannot be recovered at all? We use permanent file shredders such as Tune-up shredder, remo etc.. we can’t recover the file contents.
Even then, the file name can be found out. So, The solution to clean the trace??

Use a software called Eraser.

  • Not only, it removes the contents of file, it also clears the file name from file system.
  • Also, you can schedule the deletion at specific time or next restart.
  • If you have accidentally deleted a file using “Shift+Delete”, you can erase the complete free space in a drive.
  • So, all the deleted file names will be erased. No one find a trace. This feature does not exist in any other software.

Download Link:


December 5, 2011 / Karthikeyan Natarajan

Browse or Extract a .gho Symantec Ghost Image

Symantec has a freely-available utility that can be used to view files within a .gho image or extract files/directories from a .gho ghost image. You can download it here:

November 8, 2011 / Karthikeyan Natarajan

Context Menu Add Ons

I needed to create list of files in a folder from context menu. The process is

Open Folder Options in Windows Explorer
Click “File Types” Tab.
Choose “Folder” and Click Advanced Settings.
Click New and Give name as “List Files”
Type Action as cmd /K dir “%1” /A /B > “%1″\list.txt
Press O.
From now on, you can create the list of files inside the folder in list.txt

There are some other Useful context menu add ons with installer.
November 8, 2011 / Karthikeyan Natarajan

Reverse Dictionary

Sometimes, we need to find a Word which has a specific meaning. In that case, We have “Reverse Dictionary” which helps to find a word having the meaning that we enter.
Some of Online Reverse Dictionaries are.

November 1, 2011 / Karthikeyan Natarajan

A hack in free website hosting

Recently, i found out a small hack to avoid loading the Javascript & css  of free site domains(which are used to display ads/ track sites functionality too by free website domains).
I found in most of the sites that “These Javascript code are embedded at the end of the html file”.
When we edit the html code of our page, this “Javascript codes” will not be visible. The free website server will ad the script when viewing the pages.
What i did was, I just added a html comment “<!--” marker at the end of my code (html/php or anything).
This disabled the any html code including javascript that is added by the server.
This also makes the page load faster, if your page does not contain much javascript/css etc.
I tested its functionality in and

November 1, 2011 / Karthikeyan Natarajan

Control PC using Twitter

Here is an Application to control your PC using Twitter posts. TweetMyPC
Not only you can control, you can get tweets from computer too.
It is free, opensource software, download and install it.
Log in using gmail id.
I don’t know why the developer only allowed gmail users to login.
For setting up first time, you need to do a authorization step. You need to enter the id and click “Sign in with Twitter” which will take you to authorization step. That’s it,

For List of supported commands, see here
You can log off, shutdown, hibernate, end any task, download any file, take screenshot, & even turn off monitor.
If you tweet “os”, your PC will tweet you what is the OS and its version.
You can also create your custom command to run any program.
Now you can control your computer from anywhere using Twitter.

Download TweetMyPC
Alternative Download link

November 1, 2011 / Karthikeyan Natarajan

Best Security Scanner for Professionals

Network Mapper (NMAP.ORG) is the one of  the Best Security Scanner which is used by system and Network administrators.
It is Free, Open source and powerful. It supports huge list of operating systems including Linux, Microsoft Windows, FreeBSD, OpenBSD, Solaris, IRIX, Mac OS X, HP-UX, NetBSD, Sun OS, Amiga, and more.
For Beginners, GUI tool may be helpful. For Advanced users, most will find the command line easy.
nmap also comes in a lot of Movies such Matrix Reloaded.
If you are interested in hacking, then this tool will one of them you use for it.
Download Link: