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Deleting non-existing files.

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I noticed it's strongly recommended not to "Delete files that don't exist in source any more", due to possible accidental deletion of files by viruses or malware on PC. Usually viruses and malware attack and destroy more than one single file and most of the time it destroys hundreds of files. Is it possible to set the task so that it doesn't proceed in deleting files only in case there are hundreds of files (or more than a fixed number or files, or more than a certain percent) missing? I think this would be much useful, would avoid virus-caused deletion and would reduce disk space needed for backup files.

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answered by (194k points)
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Every antivirus and antimalware application has the possibility to be configured to exclude certain files or prompt you whenever an infected file is found. My advice is to turn the interactive mode for your antivirus/antimalware application. This option will automatically prompt you to choose an action every time something looks dubious or it's actually infected. This way you can prevent deletion for other files on your computer.

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