The PC is fully dead or shows no real power
Start with the no-power flow first so outlet, PSU, switch, and basic power-path checks stay ahead of part swapping.
Problem-first browse layer
PC problems: start here
Use this page when you know the PC is failing but do not yet know which guide or flow matches what you are seeing. Start from the visible symptom and follow the calmest next path.
Use this page when
- The PC problem is real but the right page is not obvious yet
- You want the symptom path before the deep technical explanation
- You need a calmer starting point than a long troubleshooting list
- You want to move from symptom to guide or flow without guessing
Best first clicks
Use the smallest PC branch you can name right now
The PC turns on but I still get no picture
Use the no-display path when the machine seems alive but the output path is still unclear, then switch to no-POST only if the signs fit better.
Windows loads badly or the machine crashes
Separate boot, crash, and thermal symptoms first so the repair path stays cleaner and the next evidence request is easier to answer.
I only know that something is wrong
Use the roadmap or the router when you cannot name the branch yet and need the calmest way into the right PC support path.
Pick the symptom you actually see
Common PC problem patterns
The PC does nothing when I try to turn it on
Start with the power path before changing parts or opening the whole system up.
The fans spin but I get no picture
Separate monitor or cable issues from no-POST, RAM, and graphics-path problems.
The new build will not POST
Use the minimum-boot path before changing multiple things at once.
Windows will not boot or loads badly
Start with drive visibility, boot order, and recent changes before going deeper.
Windows install or update keeps failing
Use the install path when setup loops, feature updates fail, or the machine restarts into trouble after storage or hardware changes.
The PC crashes, blue screens, or reboots
Capture the pattern first, then move into stability checks instead of random part swaps.
The PC runs too hot
Start with cooler contact, fan control, and airflow before chasing advanced tuning.
Frames are low or the PC stutters under load
Use the performance path when the machine still runs but gaming or heavier work suddenly feels worse after a change.
Use the library that fits the moment
Simple rule
Choose the symptom that is most obvious right now, not the one you think the root cause might be. That keeps the first troubleshooting step cleaner.