Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Don't buy this if you use XP or newer.

I bought this for my IBM ThinkPad T40 with Windows XP, and it barely works. Whenever it detects the hardware it makes my computer get the BSOD and restart, it sometimes doesn't do this, but that almost never happens, the only good things I can say about this is that the Signal strength is good and its pretty fast.