Where to submit sample malware or report false positives for Microsoft Security Essentials

If you encounter a false positive detected by Microsoft antimalware, or want to report an encountered malware sample, please go to: https://www.microsoft.com/security/portal/Submission/Submit.aspx and submit the sample. Sometimes the false positive may involve an incorrect detection related to an action on two files, the MMPC website above allows you to submit multiple files in a single submission as well.