Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: This was a disaster!

After following the installation directions, the mouse would not respond and I could not override it with the keyboard, so my computer was frozen and completely down. The product is not identified on the box or manual but there is a support e-mail number listed on the box which I immediately wrote to from another computer, but I never received a reply. I was finally able to re-install my original mouse (you had to uninstall the mouse to install the wireless one) and get my computer going again. If Ihadn't been able to do this, I would have had to use my recovery CD and entirely re-install all the original programs and lose new programs and data. This was very scary time for me. I'm staying with my conventional mouse and keyboard!!!