So i decided to replay whole trilogy i completed Witcher 1 again without problem but Witcher 2 have alot of random crashes mostly when when i enter locations, when dialogues/cutscene starts and when dialogues/cutscenes ends, when game loads next part of the location for example when you enter Flotsam forest from city or vice versa. So far i tried deleting most of older saves now i keep only 5-10 of them, i added Witcher 2 folder and Witcher 2 save folder to exclude list in antivirus, i used 4gb patch to allow Witcher 2 to use more than 2gb of RAM, i set GOG Galaxy and Witcher 2 to start as admin etc but it didnt help. Its very strange because these crashes are silent even Windows didnt detected them because there are no errors in event viewer.