How can I stop Windows from hanging on startup?

Episode 945 (1:38:26)

Randy from Richmond, VA

Randy has an Acer i5 PC that's hanging up as it tries to start Windows. He's updated the BIOS, Drivers, and more. Leo says that the hard drive is probably failing. Even if he reformats it, it can die and it's likely that Windows sectors are hard to read. Also, it may be the power supply failing. Startup is usually when things begin to fail. Fortunately, both hard drives and power supplies are cheap to replace.