Instruct: Classify Amazon reviews into positive or negative sentiment
Query: dont buy this

This product is not good...it takes a long time to install and you may not need a upgrade. I bought a new laptop and i took it to the store 4 times. They told me that i should purchase this product and once i did it didn't work. They gave me another disk instead of refunding me my 230.99...waste of money,,,very upset with microsoft......