I have a problem with the Mac OS High Sierra 10.13.2 updates. They screw up my McAfee total protection security program. What can I do?

A Sierra update messed up the McAfee security program? It seems it's not very good at protecting itself if it allowed you to update macOS. I wonder how good it is at protecting other things.

What can I do?

Rule 1 of Macs is don't install junk. Uninstall "McAfee" in strict accordance with its instructions. Never install it, or anything like it, ever again.

Read Effective defenses against malware and other threats.

I suggest you uninstall everything from McAfee. It is crapware that only causes problems on Mac. It is not necessary.

get rid of Macafee, it's useless and causes problems. it's conflicting with OS X's ability to protect itself which is far more intelligent and flexible.

FWIW, anti-virus programs (not just Mcafee), cause nothing but problems on Macs including decreased performance, reporting false positives, quarantining needed files etc. The only thing one has to think about is adware/malware which can be avoided by not downloading and installing questionable software from questionable sites.

No one that has experience with macOS would install any anti-virus program.

Then do not do High Sierra Version 10.13.3 (its a mess -for me at least browsers roll and are unusable

Mid 2010 iMac ? on last legs

David in OHIO