When Windows stops doing something it did yesterday. Step-by-step repairs for sound, startup, the Start menu, Safe Mode and Secure Boot — each one starting with how to find the actual cause instead of guessing.
Windows troubleshooting fails when a fix gets applied before the fault is located. Only four layers can break: hardware, firmware, Windows itself, and something you installed. Work out which layer you are in, and the right repair picks itself.
Secure Boot showing as Unsupported? Three different situations cause it. Find out which one you have and fix it without reinstalling Windows.
Start menu or taskbar not responding? Restart Explorer, re-register the Start menu, repair system files. Plus how to read blue screen stop codes.
Six ways to start Windows 11 in Safe Mode, including when Windows will not boot at all — plus what to actually do once you are in there.
No sound on Windows 10 or 11? Work through these fixes in order — output device, volume mixer, drivers, audio services and audiodg.exe CPU use.
Windows booting slowly? Measure the cause first in Event Viewer, then fix it. Covers Fast Startup, startup apps, drivers, BIOS settings and driver store cleanup.
