Hi,
Thanks for your interest on TrayFM and comments on MemInfo.
It's safe to Install, TrayFM was tested independently by Softpedia:
https://www.softpedia.com/get/Internet/Internet-Radio-TV-Player/Tray-FM.shtml#statusSmartScreen flags executables that are not very common downloaded which is the case here:
Screening downloads: SmartScreen checks your downloads against a list of reported malicious software sites and programs known to be unsafe. If it finds a match, SmartScreen warns you that the download has been blocked for your safety. SmartScreen also checks your downloaded files against a list of well-known and popular downloads by Microsoft Edge users and warns you if your download is not on this list.
Thanks,
André SantosCarthago Software Support
https://www.carthagosoft.net