Often when i turn my laptop on Windows fails to start and it comes up with the blue screen of death saying MEMORY_MANAGEMENT. Ive tried doing a virus scan using Avira but it got around 50% through the scan and the blue screen of death came up and it restarted the computer. it took over 1 hour to get half way through the scan so its damn annoying. I did the virus scan again and the same thing happened. any suggestions on what to do? thanks.