File storage service initiation of antivirus software locally installed on a user device

Methods and systems for repairing user devices infected with malicious code. One method includes storing registration information for a plurality of user devices accessing a remote file storage system, the registration information including a unique identifier of each user device and an identifier of an antivirus software installed locally on each user device. The method also includes, in response to detecting an infected file within the remote file storage system, determining a unique identifier of one of the a user device included in the plurality of user devices interacting with the infected file, accessing the registration information to identify, based on the unique identifier of the user device interacting with the infected file within the remote file storage system, an identifier of antivirus software installed locally on the user device, and remotely initiating the antivirus software installed locally on the user device based on the identifier of the antivirus software.