Despite these advancements, the pursuit of a fast boot is not without its complexities and trade-offs. The primary casualty of this efficiency is accessibility. In the race to reach the desktop, the window of opportunity to enter the BIOS/UEFI setup menu has become vanishingly small. Users attempting to troubleshoot hardware or change boot orders often find themselves frustrated by systems that boot too quickly to register keystrokes. Furthermore, the Fast Startup feature in Windows can sometimes interfere with system updates or dual-boot configurations, as the system never truly clears its memory state. This can lead to lingering software bugs or hardware incompatibilities that would otherwise be resolved by a full reboot. Consequently, IT professionals often recommend performing a "full restart" (holding the Shift key while selecting restart) when troubleshooting, to ensure the system clears its cache and initializes a true cold boot.
In a traditional "cold boot," Windows clears the RAM and initializes the kernel, drivers, and services from scratch. With enabled: pc fast boot