Du-te aici, la "drivers and software" selectezi sistemul si te uiti la "drivers". Daca nu gaseste nimic, te uiti la "software" si descarci si instalezi:
ImageBrowser EX 1.1.0a for Windows
CameraWindow DC 8.8 for Windows
Restart si vezi daca merge.
http://www.usa.canon.com/......rshot_a550
Probabil iti lipsesc drivere. windows 7 si windows 8 nu se compara cu xp. daca pc iti suporta w7 ai facut o alegere buna.
Corect, instaleaza batranu XP care-si face treaba all time, daca unu instaleaza 7 dupa el toti,