Thanks - then I musst have missed it. I got some save were I sneaked into everyones room with Maria. After that i never saw the Laptop again.
Well I need to start over then, since there is a skip function I could do it in a 3rd of the time because I remember the dialogues quite well.
~edit
Thanks to @hagemage for the knowledge of the Savegame Copys in %AppData%, I was able to recover some older saves from my nightly Backup.
Having your info @FtwDan too I should finde the nearest point available.