This is a stretch, but, such can be an issue of the pay-for license. I will lose my pay-for Emsisoft AM/AV now and then if the license process does not complete its cycle [whatever such is supposed to do] during Windows' load/startup/internet connectivity. I think my Malwarebytes sometimes bit the dust in the past. Free versions "do not care one whit" about Windows load/startup, however, periodically, the pay-fors care.
Edited by RolandJS, 27 February 2017 - 11:17 AM.
"Take care of thy backups and thy restores shall take care of thee." -- Ben Franklin revisited.
Backup, backup, backup! -- Lady Fitzgerald (w7forums)
Clone or Image often! Backup... -- RockE (WSL)
"I heard Spock finally got colander!" "I believe the word is Kolinahr." "Oh."