Unfortunately, this Thinkpad keeps crashing (blue screen error) too much meanwhile. It worked well for the first few weeks.While sometimes it goes without a crash for several days, sometimes it happens twice a day for every day of a week.So far, I have had the impression that it happens when I use MS Word.I use Word daily for work and my studies/research. I rely on my laptop 24/7 for office purposes.Hence, its poor reliability performance is very annoying. An F.(Also, last year a brand new Lenovo, bought directly, crashed definitely bc of hardware, so I am always scared now that every time this Thinkpad crashes, it may be forever). In general support by Lenovo in NY is very poor. I do not recommend buying that brand in this area. Although the notebooks seem to work fine in general. Mine were not.