It was throwing up Windows memory low errors for me within about 6 to 8 minutes (at a guess) after each reboot making my PC unusable *see pic at the bottom of my post.. yikes!.
Web protection said it was off on my system and on my friends, it's back on again now since it's been fixed.
After figuring out that it was MBAMService doing it I quit Malwarebytes but MBAMService couldn't be stopped, it was stuck on stopping and it wouldn't stop manually so it never did, nor obviously did the memory problem.
I watched MBAMService slowly eating up all of the memory on my PC via Resource Monitor after a restart.
The switch [Start Malwarebytes at Windows Startup] doesn't work!, the program just starts up again at reboot, the switch just kept resetting to on, maybe if I'd done it 12 odd times it would of stayed off, see *things you still need to fix below.
I cut my internet connection and did a system restore before figuring it out, I then uninstalled Malwarebytes so I could use my PC again.
Friends were phoning me up for help as I was still trying to work out for myself what was causing it, they said their laptops were running slow.
Things you still need to fix:
After reinstalling Malwarebytes I had to keep switching [Usage and Threat Statistics] and [Scan for rootkits] on and off at least 12 times each over many minutes to finally get one of them to stay on and the other to stay off as they kept automatically resetting.
The switch [Start Malwarebytes at Windows Startup] doesn't work either, the program just starts up again at reboot, the switch just kept resetting back to on, maybe 12 tries would of done it maybe not.
Perhaps more switches that I've never tried also do the same?.
When I set a password in Malwarebytes why do I have to keep entering it for every single new tab that I click on after already having entered the password once?, the old version of Malwarebyes used to let you navigate around all of the settings tabs after entering the password only once and it only locked again after closing the program interface.
Why does Malwarebytes keep trying to contact the license server when I have a lifetime license and even when I have no internet connection?, what's the point other than the annoyance?, it's a lifetime license so how many times does it really need to check it?!.
Other than the glitches, thanks.