Although it is not really an electronics question, I assume your barcode scanner has been set as a virtual keyboard. Your nativity settings / keyboard language is not English as default and hence it reads some characters differently. Try changing the keyboard language to English.
Looking at its specs, the scanner has multiple interface options. When in keyboard mode, windows only recognises it as a keyboard and usually it interacts with it as a keyboard only. Try changing the scanner's interface mode by the control barcodes usually supplied with scanners. (I'm not sure if you have that or not. Motorola usually supplies control barcodes with their scanners, I'm assuming this scanner has them too. If not in the box, maybe downloadable.)