macOS•Medium
Won't shut downMac won't shut down
This means your Mac is not completing the normal shut down process. You may see the screen stay on, apps that keep spinning, or the Mac return to the ...
Error code documentation
Find solutions to common error codes and issues
macOS•Medium
Safari not workingSafari not working on macOS
Safari may stop opening pages, freeze, crash, or show a blank screen on your Mac. This usually happens when the browser itself needs a restart, a webs...
macOS•Medium
Wi-Fi not workingWi-fi not working on mac
This means your Mac cannot connect to a wi-fi network, or it connects but cannot access the internet. You may see this when the Wi-Fi icon shows a war...
macOS•Medium
OverheatingMacBook overheating
This means your MacBook is running hotter than normal and macOS is trying to protect the hardware. It can happen during heavy work, while charging, af...
macOS•Medium
Running slowmac is running slowly
This means your Mac is responding more slowly than usual, with apps taking longer to open, scrolling feeling laggy, or the whole system pausing for a ...
macOS•Medium
Update stuckmacOS update is stuck
This message appears when Quickfix AI detects that a macOS update is not moving forward as expected. You may see the progress bar paused, the update w...
macOS•Medium
Keyboard not workingMacbook keyboard not working
This alert appears when Quickfix AI detects that your Macbook keyboard is not responding as expected. You may notice that some keys do nothing, the wh...
macOS•Medium
AirPods won't connectAirPods won't connect on macOS
This usually means your Mac can see your AirPods but cannot finish the Bluetooth connection. It often appears when you open Bluetooth settings, try to...
Common issues•Medium
Loud fanLoud fan on your laptop
This message means your laptop fan is spinning faster than usual, which often happens when the device is hot or a background task is using a lot of po...
Common issues•Medium
Bluetooth not workingBluetooth not working
This means your device is having trouble turning Bluetooth on, finding nearby accessories, or keeping a Bluetooth connection stable on Windows or macO...
Common issues•Medium
USB device not recognizedUSB device not recognized
This message appears when Windows or macOS detects that something is plugged into a USB port, but cannot read it properly. It often shows up after con...
Common issues•Medium
No soundNo sound on computer
This means Quickfix AI detected that your computer is not playing audio through any output device, such as speakers, headphones, or a monitor with sou...
Common issues•High
Won't turn onWon't turn on
This message appears when Quickfix AI detects that your computer is not starting up at all. A computer that won’t turn on may show no lights, no fan n...
Common issues•Medium
No internet connectionNo internet connection
Quickfix AI shows this message when it cannot reach the internet from your Windows or macOS device. It usually appears while the app is checking for u...
Common issues•Medium
Wi-Fi connected but no internetWi-Fi connected but no internet
This means your Windows or macOS device is connected to a Wi-Fi network, but it cannot reach the internet. You may still see full Wi-Fi bars, but webs...
Common issues•Medium
OverheatingLaptop overheating
This issue means your laptop is running hotter than normal and Quickfix AI has detected signs of overheating. It often appears during heavy use, while...
Common issues•Medium
Printer offlinePrinter offline
This message means Quickfix AI cannot reach your printer right now. The printer may be turned off, disconnected from Wi‑Fi or the cable, paused, or se...
Common issues•Medium
Keyboard not workingKeyboard not working
This message appears when Windows or macOS is not receiving input from your keyboard, or only some keys respond. It can happen after a restart, when y...
Windows•Medium
Undoing changesWindows is undoing the update changes
This message appears when Windows tries to install an update but cannot finish it, so it rolls the changes back to keep the system usable. You usually...
Windows•Medium
0x80073701Windows Update could not install a required component
This code usually appears when Windows Update cannot install a system component it needs to finish an update. It often shows up during a normal update...
Windows•Medium
0x800705b4Windows update or scan timed out
0x800705b4 usually means Windows took too long to finish an update, security scan, or another system task. It often appears when a download stalls, a ...
Windows•High
0xc1900101Windows update installation failed
0xc1900101 usually means Windows Update could not finish installing because something on the device blocked the upgrade or caused it to roll back. It ...
Windows•High
0xc00000050xc0000005 application error
The 0xc0000005 application error usually means Windows tried to start a program, but something blocked it from reading or writing the memory it needed...
Windows•Medium
0x80070002Windows update can’t find a required file
This code usually means Windows Update was looking for a file, update component, or installation package and could not find it. It often appears while...
Windows•High
0x80070643Windows update failed to install
0x80070643 usually means Windows Update tried to install an update or component but hit a problem during setup. It often appears after a restart, when...
Windows•Medium
0x80004005Unspecified failure in Windows
The 0x80004005 error in Windows usually means something failed without giving a clear reason. It often appears during updates, file access, network sh...
Windows•Medium
Wi-Fi doesn't have a valid IP configurationWi-Fi doesn't have a valid IP configuration
This message means Windows connected to the Wi-Fi network, but it could not get a valid IP address from the router. Without a valid IP address, your d...
Windows•High
0xc000007b0xc000007b application error
The 0xc000007b application error usually means Windows could not start an app because one of its required files, libraries, or components did not load...
Windows•High
vcruntime140.dll missingvcruntime140.dll is missing
This message means Windows cannot find vcruntime140.dll, a file that many apps need to start. It usually appears when you open a program, install soft...
Windows•Medium
msvcp140.dll missingmsvcp140.dll is missing
This message appears when a Windows app cannot find msvcp140.dll, a file that is part of the Microsoft Visual C++ runtime. Many programs need it to st...
Windows•High
Your PC ran into a problemYour PC ran into a problem
This Windows stop screen appears when your PC hits a serious system problem and needs to restart to protect itself. It often shows up during startup, ...
Windows•High
100% disk usage100% disk usage on Windows
This means Windows is using your drive at full capacity, so apps may open slowly, files may take a long time to save, and the whole computer can feel ...
Android•Medium
com.android.phone has stoppedcom.android.phone has stopped
This message means Android's phone service has crashed. It usually appears when you try to make or receive calls, change SIM settings, or after the ph...
Android•Medium
df-dferh-01Play Store sign-in or connection problem
This code usually appears in Android when the Google Play Store cannot finish a sign-in, refresh its account data, or connect properly to Google servi...
Android•Medium
No commandNo command on Android
No command usually appears on an Android screen during a restart, update, or recovery attempt. It often means the phone has entered a waiting state an...
Android•Medium
Google Play services keeps stoppingGoogle Play services keeps stopping
This message means Google Play services is crashing or failing to run in the background on your Android device. You may see repeated pop-ups, apps may...
Android•Medium
Process system isn't respondingProcess system isn't responding
This message means Android’s system process has stopped responding, so the phone may freeze, slow down, or stop letting you switch apps normally. It o...
Android•Medium
Stuck in Safe ModeStuck in safe mode
This means your Android phone keeps starting in safe mode instead of normal mode. In safe mode, Android loads only the system apps that came with the ...
iOS•Medium
Error 3194Cannot update or restore iPhone through iTunes or Finder
iPhone error 3194 usually appears when your computer cannot reach Apple’s update servers during an iPhone restore or software update. It often shows u...
iOS•High
Error 14iPhone recovery or restore failure
This usually appears when Quickfix AI or iTunes/Finder cannot complete an iPhone update, restore, or recovery process. On iPhone, it often means the c...
iOS•High
Error 9iPhone connection problem during restore or update
iPhone error 9 usually appears when iPhone loses its connection to a computer during an update or restore. It often happens in iTunes or Finder when t...
iOS•High
Error 4013iPhone can’t restore or update
Error 4013 usually appears when an iPhone disconnects or fails during an update or restore in Finder, iTunes, or Quickfix AI. It often points to a com...
iOS•High
Stuck on Apple logoiPhone stuck on Apple logo
This means your iPhone starts to turn on but cannot finish loading iOS, so it stays on the Apple logo instead of reaching the home screen. It often ap...
iOS•High
SOS onlyiPhone shows sos only
“SOS only” means your iPhone cannot connect to your mobile carrier’s network, so it can only place emergency calls. You may see this after moving to a...
iOS•High
Won't turn oniPhone won't turn on
This means your iPhone is not starting up normally, so the screen stays black, frozen on the Apple logo, or completely unresponsive when you press the...
iOS•High
iPhone UnavailableiPhone unavailable
iPhone unavailable means your iPhone is locked because too many incorrect passcode attempts were entered. When this happens, the phone temporarily or ...
macOS•High
Flashing question markFlashing question mark on Mac
A flashing question mark folder on macOS means your Mac cannot find a startup disk with a working system to boot from. This often appears right after ...
macOS•Medium
kernel_task high CPUkernel_task using high cpu on macOS
This message means macOS is using kernel_task more than usual. kernel_task is a core system process, and high CPU use often shows up when the Mac is t...
macOS•Critical
Won't bootMac won’t start up
This means your Mac is not getting past startup and may stop at a blank screen, Apple logo, progress bar, or login screen. It can happen after a macOS...
macOS•High
Stuck on Apple logoMac stuck on Apple logo
If your Mac gets stuck on the Apple logo during startup, macOS is having trouble finishing the boot process. This can happen after an update, when a s...
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