How long does it take to start the Windows 7 system?

Microsoft hinted in the official Windows 7 blog that the next-generation operating system Windows 7 takes only 15 seconds to boot. This is a fairly short time! However, we must not forget that Windows Vista, Microsoft made too many promises before the development, and many promises failed to materialize after the product was officially released. It is undeniable that the hardware configuration is different and the system startup time is different. According to the author's test, the Windows 7 operating system just installed is about 40 seconds. If the installed software is more than 60 seconds (the platform is Thinkpad T400 2767CTO computer), enter the login interface.