Hi there,
> > FreeCAD 0.10, Libs: 0.10R3225 > > © Juergen Riegel, Werner Mayer 2001-2010 > > ##### #### ### #### > > # # # # # # > > # ## #### #### # # # # # > > #### # # # # # # # ##### # # > > # # #### #### # # # # # > > # # # # # # # # # ## ## ## > > # # #### #### ### # # #### ## ## ## > > > > Parameter not existing, write initial one > > This warning normally means that FreeCAD is running the first time > > or the configuration was deleted or moved. Build up the standard > > configuration. > > User settings not existing, write initial one > > This warning normally means that FreeCAD is running the first time > > or your configuration was deleted or moved. The system defaults > > will be reestablished for you. > > Illegal storage access... > > Hello Martin, > > It seems that this bug is known and fixed upstream, see > > https://sourceforge.net/tracker/index.php?func=detail&aid=3059449&group_id=49159&atid=4552<https://sourceforge.net/tracker/index.php?func=detail&aid=3059449&group_id=49159&atid=455298> I'm not totally sure that's the bug causing the crash, since we saw already a lot of crashes on startup (the "illegal storage access" message is very generic), for different reasons. But it is hard to know what exactly is the problem (it might be something such as a wrong 3D driver). Where you doing something such as opening or creating a new document, or did FreeCAD crash before doing anything? Did the FreeCAD window open? But as Teemu says, the 0.11 release is imminent, so there are high chances that whatever causes that crash will be solved with it.