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Technology problems and error codes,
explained clearly. One step at a time.
158 solutions available
Troubleshooting with context and sources.
Featured problems
A starting point for getting things working again.
PC turns on but no display
The PC shows signs of power, but the monitor has no usable picture. Check the monitor, selected input, cable and video output before moving on to internal components.
View solutionWindows Update error 0x80070005
0x80070005 means access was denied during Windows Update. Identify the update, device management and any resource named in the logs before deciding what to repair.
View solutionSteam cannot start the game: missing executable
Steam cannot launch the game because a required file is missing or another program is blocking access. A failed download, damaged file or security quarantine may be involved; antivirus is not always the cause.
View solutionWi-Fi connected but no internet
Joining Wi-Fi does not guarantee internet access. Compare another device on the same network to separate a PC-specific problem from a local-network or provider-side issue.
View solutionExplore
Start with your system, device or connection.
PC & hardware
Start with what you can observe. Check connections before working inside your PC.
Windows
Understand the error in context, from simple checks to system repair.
Steam
Client startup, downloads and game files, with steps grounded in Valve documentation.
Internet & networks
Find out whether the problem affects your PC, your network or the internet connection.
Gaming & consoles
Game errors, licenses, internet connections and controller pairing on PS5 and Xbox.
Peripherals
Printers, keyboards and mice in Windows 11: identify the device state before changing drivers.
Mobile
Android and iPhone connectivity, apps and device behavior, with steps specific to each problem.
Errors & messages
The exact message is a useful clue.