Instruct: Classify the given review into positive or negative sentiment.
Query: Instability and weird error messages

Windows ME came with my computer and I've had lots of problems with it...it crashes much more frequently than it should and every time I turn on my PC, Norton Anti-Virus pops up with an error message about "suspicious script" which I think is actually a glitch in Windows. The worst was when I installed a scanner and the windows explorer program stopped working altogether...I had to use system recovery and lost all my files and programs. Ouch. The guy who works at the computer help center at my university advised me to switch to Windows 2000 as soon as possible because ME is notoriously bad.