Hi Steffen,This could be caused by another process using one of the files that the Stardraw AV Updater needs to update: the Updater can't overwrite the file in use so has to give up.
One such shared file might be Stardraw Read Dongle.dll - this is used by Stardraw AV and also by some pages on the Stardraw.com website. Try closing any browsers that are running and run the Stardraw AV Updater again. Does this solve the problem?