Jo-Anne wrote on 12/5/2017 9:40 AM:
Over the past week, my computer has locked up three times--to the point
where I had to turn it off manually. I suspect the problem is
Malwarebytes. I run the free version when I want to check for malware.
However, the last time I did an update, it installed a trial version of
the full program. (I don't remember being asked to confirm that I wanted
it.) What made me think of this program being the problem is that today
I got a message from the program that I had three more days of the trial
version.

Assuming that it is Malwarebytes causing the problem, what is the best
approach for dealing with it? Should I uninstall Malwarebytes and then
try to reinstall the free version? Wait for the trial version to end?
Something else?

I've had occasional lock ups on our computers but only when waking from
(S3) sleep and continuing a login through the welcome screen. A while
ago, with vendor assistance, I traced the problem to a weird interaction
between Malwarebytes (paid version) and ESET NOD32 antivirus (also paid
version).

The partial solution to the problem was to delay the start of
Malwarebytes - there's a setting to do this - and to put some of the
Malwarebytes files in the ESET exclusion list. This seemed to break the
deadly embrace almost always. (Need to check the exclusion list each
time Malwarebytes goes to a new version.)

The above is probably useless information unless you are using ESET too.
--
Jeff Barnett