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Below are steps on how to hide a folder name & icon without any software. This method only hides your folder icon and name. This is not protecting your folder from other people to open it.
Follow the steps below.

Create a new folder on your computer hard drive or select a folder that you want to hide the name & icon.

Rename the folder. When you rename it, hold down Alt key and press 0160. (When you are pressing 0160 this will show nothing.)

NOTE : You must on Num Lock (short for Number Lock) and use numeric keypad. Don't use the number on the top side of Alphabet keys. If you use laptop or other device where there are no extra Numerical keypad, then check the device manual to use Numerical keypad.

Now right click on the folder and select Properties select the tab Customize and select Change Icon. Scroll along and you should see a few blank spaces. Click on any one and click OK and Apply the settings.

Now your folder name and icon is invisible. If it shows the Type i.e. File Folder, then change your view to List, Small Icons, Medium Icons or Large Icons.

All major cell phone companies are launching android cellphones.If you are an android user, below are some secret codes of android which will help you.


Cell Battery, WiFi Usage etc Info  *#*#4636#*#*

Restore Factory Settings *#*#7780#*#*

Format Phone *2767*3855#

Launch service mode *#*#197328640#*#*

Test WiFi *#*#232339#*#* or *#*#526#*#* or *#*#528#*#*

Display WiFi MAC address *#*#232338#*#*

GPS test *#*#1472365#*#*

Other GPS test *#*#1575#*#*

Bluetooth test *#*#232331#*#*

Display Bluetooth physic address *#*#232337#*#

Start Gtalk monitoring *#*#8255#*#*

PDA, Phone, H/W, RFCallDate *#*#4986*2650468#*#*

PDA and Phone *#*#1234#*#*

FTA SW version *#*#1111#*#*

FTA HW version *#*#2222#*#*

PDA, Phone, csc, *#*#44336#*#*

Packet Loopback *#*#0283#*#*

LCD test *#*#0*#*#*

Melody test *#*#0673#*#* or *#*#0289#*#*

Device test such as vibration and lightness *#*#0842#*#*

Display touchscreen version *#*#2663#*#*

Touchscreen test *#*#2664#*#*

Distance sensor test *#*#0588#*#*

Display memory version *#*#3264#*#*

In order to run a Java program from the command prompt, follow the steps below carefully:

• Create a temporary folder C:\mywork.  Using Notepad or another text editor, create a small Java file HelloWorld.java with the following text:

  public class HelloWorld
  {
    public static void main(String[] args)
    {
      System.out.println("Hello, World!");
    }
  }

  Learn how to create a helloworld app. 

   

•  Save your file as HelloWorld.java in C:\mywork.  To make sure your file name is HeloWorld.java, (not HelloWorld.java.txt), first choose "Save as file type:" All files, then type in the file name HelloWorld.java. 

•  Run Command Prompt (found under All Programs/Accessories in the Start menu).  Type

  C:\> cd \mywork

  This makes C:\mywork the current directory.
  

  C:\mywork> dir

  This displays the directory contents.  You should see HelloWorld.java among the files.

  C:\mywork> set path=%path%;C:\Program Files\Java\jdk1.5.0_09\bin

  This tells the system where to find JDK programs.

  C:\mywork> javac HelloWorld.java

  This runs javac.exe, the compiler.  You should see nothing but the next system prompt...

  C:\mywork> dir

  javac has created the HelloWorld.class file.  You should see HelloWorld.javaand HelloWorld.class among the files.

  C:\mywork> java HelloWorld

  This runs the Java interpreter.  You should see the program output:

  Hello, World!

  If the system cannot find javac, check the set path command.  If javac runs but you get errors, check your Java text.  If the program compiles but you get an exception, check the spelling and capitalization in the file name and the class name and the java HelloWorld command.  Java is case-sensitive!

• It is possible to make the path setting permanent but you have to be very careful because your system might crash if you make a mistake. Proceed with extreme caution!