I recieved etup unable to automatically close all applications. It is recommended that you close all applications using files that need to be updated by setup before continuing" When I tried to download War thunder

Community Technical Support Crashes, Connection, Update Problems & Advice
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I recieved “setup unable to automatically close all applications. It is recommended that you close all applications using files that need to be updated by setup before continuing” I downloaded the latest launcher but still faced this problem. I need help