I got the following problem:
I changed my Windows username in the registry. The problem now is that Bandicam with every starts saves the settings.ini also under the old username:
C:\Users\(old username)\AppData\Roaming\Bandicam Company\BANDICAM\settings.ini
So I have to manually delete this folder every time, because I do not want the folder
any more. I made a deinstallation and new installation of Bandicam, but this did not fix this problem.
Maybe a registry key has to be deleted or changed?