Since GFWL was removed from Batman games, old savegames are no longer recognized by the game and will even make it crash if not converted. Sharkiller
described how to manually edit savegames in this thread
Standard savegames should be compatible with the GOTY edition.
The software I'll present in this guide should detect savegames, but those may not be the ones you want to convert...
So here are the locations where you must look for your savegames. It's always a good idea to back them up, in case anything goes wrong.
Depending on the edition you own, you may find your old savegames in different places.
Here is a table summarizing the savegames locations:
| ||Standard Edition ||GOTY Edition |
|Retail version ||Documents\WB Games\Batman Arkham City\SaveData ||Documents\WB Games\Batman Arkham City GOTY\SaveData |
|Steam version ||Steam\userdata\<userid>\57400\remote ||Steam\userdata\<userid>\200260\remote |
where <userid> is the Steam ID of your account.
Usually, Steam is installed in C:\Program Files(x86)\Steam
Savegames are SGD files named "saveX.sgd": X+1 corresponds to the slot in which your save resides (save0.sgd for slot 1, save1.sgd for slot 2, and so on...).
If you do not want to overwrite a new save you started after the patch, you may want to rename the old one accordingly.