A few months ago, I clicked on a Tumblr post claiming that it could determine your MBTI type from your blog. People later revealed that it was a virus and a few days later, an unidentified browser window was popping up periodically, taking me out of video games and videos. I was able to determing that the browser windows were caused by a program called yesjcdfzux.exe. When I tried to find the program and delete it, it would pop up in another file somewhere on my computer, so the issue is more complex than just the program. Whatever is causing it went dormant for a while, but recently the program has been popping up on my computer again, this time without the browser window. In the Processes tab in the Task Manager, there are over 20 different instances of this program appearing at a single time, and it also seems to be causing a large number of instances of svchost.exe. There seems to be over 20 instances of svchost.exe as well. I've managed to prevent the program from running, but I haven't been able to keep the multiple instances of svchost. In the Task Manager, my CPU usage will randomly just bump up to ober 75% usage, even without opening any programs. This has made my computer slow to a crawl, where I can't play Steam games or even just watch videos.