I'm running Win8.1 Enterprise x64. I keep having a problem where the Server service and Task Scheduler service are stopping by themselves, despite being set to Automatic. I tend to only notice when I go to access the Network and find it's not working, or some program tries to set a task and fails, so I'm not sure exactly when it's happening, just that it happens quite frequently and is annoying. I've also found lately that I can't download with IE11, nothing happens when I go to a download page, even if I click on the Download link manually. It doesn't bother me really as I use Chrome but it's still something broken. I'm using KMSPico but I doubt that's got anything to do with it.
Yeah, a virus is the first thing I thought of but I'm running Avast and Comodo Firewall/HIPS and I scanned with Malwarebytes and found nothing. I'll do a sfc scan though, maybe that will fix something.