How to tell if hardware is causing boot issues — prioritized flow Hardware often causes boot failures but software can mimic the same symptoms. This article gives a prioritized, low-risk troubleshooting flow — from power and P
Change the boot order in my PC — decision flow & steps Decide whether you need a one-time boot or a persistent change, then follow the short decision flow to open firmware or use the boot menu. Covers UEFI vs legacy
What is a bootable USB and how do I create one? A bootable USB is a removable drive prepared so your firmware can start from it. This playbook gives a checklist, OS-by-OS step-by-step creation (Windows, macOS
Enter BIOS/UEFI during startup and confirm it worked Want to open firmware at startup to change boot order, enable virtualization, or disable Secure Boot? Prepare a wired keyboard, fully shut down (no hibernate/Fa
PC won't boot at all? 10–30 min safety-first checklist Start by confirming whether the PC is getting power. This 10–30 minute, safety-first checklist walks you through exterior checks, a few reversible internal test
Understanding PC Boot & Startup Processes: diagnostic map A PC boots by a short chain of handoffs: firmware and power initialize hardware, firmware launches a bootloader, the bootloader loads the kernel and initramfs,