When holding down the shift keys it is typing the wrong symbols

You need to change the keyboard lay out.
Windows 7 or Windows Vista

1. Click Start Collapse this imageExpand this image, type intl.cpl in the Start Search box, and then press ENTER.
2. On the Keyboards and Language tab, click Change keyboards.
3. Click Add.
4. Expand the language that you want. For example, expand French (Canada).
5. Expand Keyboard list, click to select the English (UnitedS tates) check box, and then click OK.
6. In the options, click View Layout to compare the layout with the actual keyboard.
7. In the Default input language list, click English (United Kingdom) - English (United States), and then click OK two times.
8. In the Regional and Language Options dialog box, click OK. Note The Language bar appears on the taskbar. When you rest the mouse pointer over this bar, a tooltip appears that describes the active keyboard layout.
9. Click the Language bar, and then click English (United States)

1. Click Start , type intl.cpl in the Run box, and then press ENTER.
2. On the Languages tab, click Details.
3. Under Installed services, click Add.
4. In the Input language list, select the language that you want. For example, select French (Canada) .
5. In the Keyboard layout/IME list, click English (United States), and then click OK .
6. In the Select one of the installed input languages to use when you start your computer list, click English (United Kingdom) - English (United States), and then click OK.
7. In the Regional and Language Options dialog box, click OK. Note The Language bar appears on the taskbar. When you rest the mouse pointer over this bar, a tooltip appears that describes the active keyboard layout.
8. Click the Language bar, and then click English (United States)