Smart screen activates a file that isn't entirely known and may possibly be unsafe. It runs in the background but only notifies you if you run a suspicious file.guys, i read sometimes you suggest to enable smartscreen. but on MS community they told me it works only with IE or edge. so if you don't use them,isn't it useless to enable it?
Every other company had its shady side of business.Please enable UAC and Smart screen.
Replace IOBIT with Malwarebytes Anti-Malware and an Antivirus like Avast. Iobit has been accused of stealing many software databases and isn't really trustworthy.
He must have updated the config I never saw McAfee. Or the Vista tend to assume everyone's running Windows 10. Not that there is anything wrong with that. I have my Windows Vista computer from childhood in great condition.Every other company had its shady side of business.
Advising to use a free antivirus when OP is using Mcafee Internet Security 2016 without giving any info is not really helping OP in understanding, when OP does share his config to be open for feedback.
Not to mention McAfee is a decent solution on its own.
UAC Interferes with my quadriplegic softwareHe is running Windows Vista, he can't enable SmartScreen (apart from in IE) and enabling UAC to at least default is necessary.
Windows vista is still reciving updatesUAC is really helpful, if not mandatory in this case since you're using an operating system that's not receiving updates anymore.
I would also replace (as stated) IoBit with Zemana Antimalware Free, Malwarebytes Free and/or Emsisoft Emergency Kit as on-demand scanners