== Error codes guide ==

Ever get an "Error occurred: 10023" message or similar from an application? Well, those meaningless numbers can actually be useful if you know what they mean.

=== Converting from hex to decimal, a quick run-through ===

Of course, sometimes you'll get an error code in a format like so - {{{0x0000C0A3}}}. The {{{0x}}} means that it's hexadecimal - and most lists of error codes give the decimal. To convert:

* Open **calc.exe**
* Select **Hex**
* Select **Dword**
* Enter the number without the {{{0x}}}
* Select **Dec**

You should now have a decimal representation.

{{windows:calc.png|A sample view}}


=== System error codes ===

[[http://msdn2.microsoft.com/en-us/library/ms681381|A list of Win32 API error codes can be found here.]] - You usually met these when a badly written application is crashing.

=== Kernel error codes ===

[[http://aumha.org/win5/kbestop.htm|A list can be found here]] These are emitted from the basic core of the OS and are normally displayed via the dreaded Blue Screen Of Death (BSOD). Usually met when a badly written device driver is crashing, or hardware is failing.

For further help in resolving these, please see our [[windows:BSOD|Guide to resolving BSODs]].


=== Winsock error codes ===

[[http://msdn2.microsoft.com/en-us/library/ms740668|These error messages]] are peculiar to Windows' networking code and seem to be rarer these days.