# AS-IS failure modes

| Failure | Detection | Current handling | User-visible result | Data risk | Recovery | Target handling |
|---|---|---|---|---|---|---|
| Network unavailable | filesystem/XML operation | incomplete evidence | install/update may fail | stale files | unknown | use valid local cache |
| Partial copy / version skew | no proven transaction | copy/delete code | missing module | load failure | reinstall | staging + atomic pointer |
| Missing DLL / corrupted Settings.xml | generated load or loader parse | warnings/behavior varies | command/ribbon missing | none to DWG at load | manual repair | manifest validation |
| One of 20 modules incompatible | ._netload result | sequential continuation unknown | partial functionality | inconsistent UI | manual repair | one entry package compatibility check |
| Repeated NETLOAD / duplicate ribbon | runtime | module-specific | duplicate UI possible | UI only | restart | idempotent registry |
| No write permission / AV lock | file operations | errors/messages vary | launch blocked | partial install | manual repair | diagnostics and no activation |
| AutoCAD already running / profile missing / LISP/BAT absent | not fully proven | unknown | bootstrap may not execute | none | manual | explicit duplicate policy/preflight |
| Update during use | legacy copy model | unknown | locked or mixed files | runtime instability | manual | versioned immutable directories |