I logged onto my Windows 7 PC today and found that it had restarted overnight to install some updates. After maybe 4 or 5 minutes, I noticed the computer was being really slow, and something was taking up 95% of of my RAM. I opened task manager to see that there were literally hundreds of copies of javaws.exe running in the background. After a few minutes spent trying to look up the problem, I reset the computer and did a boot scan with Avast, which found nothing. The problem happened again after I logged back on, so I used JavaRa to uninstall all versions of Java, and the problem stopped. I then performed a scan with Malwarebytes, and it found nothing. I recognize that this may not apply to my computer, but someone mentioned a keylogger when addressing a similar problem, so I'm a bit worried.