PhoenixEnigma wrote:existentialpanda: are you opting to view processes from all users? As an aside, it's usually suggested you don't run multiple AV programs at once, too.
I haven't been viewing processes from all users, but I switched to that just now and it's exactly the same except with svchost visible as well - though it isn't doing the memory thing right now. I'll try that the next time it happens though.
If you don't see any specific process using up all your RAM, you may want to download a copy of Memtest86+ and run a thorough test to see if you have some bad RAM.
About the AV thing - why is that? I haven't heard that before.
It's generally okay to have more than one AV program installed
on your machine, although some of them will refuse to install (or give you warnings) if you try to install them along with another one. However, you should never have more than one active
AV program running at the same time. By active I mean that it's sitting in resident memory doing real-time scanning.
If you have more than one AV program active, they can interfere with one another. You might get a lot of false alerts because one AV program is interpreting the activity of the second AV program as virus activity. You might also miss a lot of alerts because the two programs are effectively blocking one another. And, in some extreme cases, you can completely lock up your machine as both AV programs fight over the same file or process.
In fact, it's actually possible that your memory issue is due to something like this.
I'd suggest removing one or the other completely. Or, at the very least, disable active scanning for one of them. Finally, I'd suggest grabbing a copy of MalwareBytes and running a full scan with that, as it works a little differently and might pick up things that the other two are missing.
But definitely remove or disable one of your AV programs.