Answer:

This problem is arising due to the Keyboard layout language Setting at Control Panel. Use the following steps to change the setting…

Adding the United States-International keyboard layout

Windows XP

1. Click Start
2. open Run box,
3. Type intl.cpl in the Run box and then press ENTER.
4. Go to the Languages tab,
5. Click Details.
6. Under Installed services,
7. Click Add.
8. In the Input language list, click the language that you want. For example, English (United States).
9. In the Keyboard layout/IME list, click United States-International, 
10. Click OK. 
11. In the Default input language list, click Language name - United States-International (where Language name is the language that you selected in step 7)
12. In the Regional and Language Options dialog box, click OK. 

Windows 7 or Windows Vista

1. Click Start
2. open Run box,
3. Type intl.cpl in the Run box and then press ENTER.
4. Go to Keyboards and Language tab,
5. Click Change keyboards.
6. Click Add.
7. Expand the language that you want. For example, English (United States).
8. Expand Keyboard list, select the United States-International check box,
9. Click OK
10. In the Default input language list, click Language name - United States-International (where Language name is the language that you selected in step 7)
11. Click OK two times.
12. In the Regional and Language Options dialog box, click OK. 

 Note: Notice that the Language bar appears on the taskbar. When you position the mouse pointer over it, a ToolTip appears that describes the active keyboard layout.

1. Click the Language bar
2. Click United States-International on the shortcut menu that appears.
3. The United States-International keyboard layout is selected.