I've had Microsoft Security Essentials performing a full scan on my computer now, and it's been going for 39 hours. Yet it only completed about 10%. The only programs I have been using the last days have been the browser, spotify and skype. My hard drive keeps automatically filling up to its max capacity, probably because of some virus, which is around 913 gb. (I've used a lot of other antivirus programs and they've found nothing, save for Webroot. It found two viruses and removed them. Slowly but surely more space become available at my hard drive, but now it's getting full again.) Is there any way to speed up the scan?