The utility must be placed in the folder with the Blade & Soul client, After starting, to check the client, you must click the "Scan by files.cinn" button, Upon completion of the check, the utility, upon detection of invalid files, will offer to delete them, click YES! We start the client’s check for Garbage, the button "Search for garbage", when finding garbage, the utility will offer to delete it, click YES! Button "Download client" - downloads missing client files ... and after checking the utility, try to disable the antiviruscheck for Russian letters in the file pathrun as administrator launchersway.