Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Might crash your system

Mouse functioned properly, however, soon after installation, my computer would crash upon attempt to shut system down. Mouse and biometric device have their own software. Removed biometric device software, no more crashes. Conversed with Microsoft Tec. (polite fellow from India). His help consisted of nothing more than reading from the manual that came with product. Suspected biometric device was defective. Tried new device. Same system crashes. Software conflict issues confirmed. Purchase with caution if you are a windows XP user.