file as a "false positive" and deletes or quarantines it during installation. : Check your antivirus Quarantine and restore the file if it's there. According to users on Reddit
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Ensure the file is exactly u4.exe and not a backup or a renamed configuration file. 5. Reinstall or Verify Integrity u4.exe does not exist
If you have a legitimate source (e.g., a friend with the same program, a backup, or the original installation media), you can copy u4.exe into the correct folder. file as a "false positive" and deletes or