Today I noticed my ram usage was slightly higher than usual, its usually ~25% but today it was at 31%. So I opened up task manager to see what program was malfunctioning and I noticed there was two Explorer.exe processes running! One of the processes was using about 28mb of so and the other was using about 5-6mb.
So I restarted the computer, and the smaller Explorer.exe is nowhere to be seen. I also read that windows has a feature to where you can have all explorer windows run as their own process, however when I checked the feature was not enabled.
Anyways, I am now running a full scan with MSE and I will follow up with a scan with Malwarebytes. Problem is... I run a quick scan everyday and a full scan at least once a week. I also have no-script and adblock installed on firefox. I also make sure to scan all installers before installing them.
The only change I have made to my computer today was installing this program to try out. 3RVX Brings a Mac-Like On Screen Volume Indicator to Windows - Display - Lifehacker
But I scanned the file with both MSE and Malwarebytes before installing. Plus lifehacker is a reputable site, so I am sure they checked the file as well.
I have also noticed lately that 7 takes a bit longer to start, and has a considerable amount of lag when opening certain programs especially right after first starting. despite the fact I have not installed any utility programs recently.