Minha Integridade de memória não ativa

quando puxo na log de eventos consta o seguinte erro "Windows is unable to verify the image integrity of the file \Device\HarddiskVolume3\ProgramData\Microsoft\Windows Defender\Platform\4.18.26080.4-0\DefenderSessionHelper.exe because file hash could not be found on the system. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source."