Just found this.
"1.Navigate to C rogram FilesRockstar GamesL.A. Noire
2.Remove any file with a .patched extension
3.Remove Social Club v1.0.X.0 Setup.exe
4.Run Patch_2382_XXXXX_1.exe
5.Press Update
6.Start Game via launcher
If the same thing happens, uninstall and re-install the full game and attempt to patch. If the same problem happens, repeat steps 1-6 above after consulting the tips below."
Borrowed from http://support.rockstargames.com/entrie ... ire-for-pc
"1.Navigate to C rogram FilesRockstar GamesL.A. Noire
2.Remove any file with a .patched extension
3.Remove Social Club v1.0.X.0 Setup.exe
4.Run Patch_2382_XXXXX_1.exe
5.Press Update
6.Start Game via launcher
If the same thing happens, uninstall and re-install the full game and attempt to patch. If the same problem happens, repeat steps 1-6 above after consulting the tips below."
Borrowed from http://support.rockstargames.com/entrie ... ire-for-pc