No wonder some people switch to Mac. It must be infuriating having blue screens and hardware trouble all the time. All I can imagine is that they have very bad luck, or are doing something very wrong on their Windows machines. I work for a small company that is basically an outsourced IT department for other small companies. We support around 500 desktops across multiple clients. 80% would be HP corporate desktops, but there is a mix of clones and other brands too. I couldn't tell you the last time I was asked to look at a blue screen across any of them. I also don't see many hardware issues. One client bought a bunch of cheap Acer slimlines about 9 years ago. Most of their power supplies have died - they really are crappy machines. Beyond that though I can't recall any recent issues, which is surprising as some machines are very old, and some are in extreme environments.
I'm an advocate for choosing good quality hardware, and good quality software (particularly drivers). Mac provide both. The combination of Microsoft software and corporate hardware also provide both.
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