I have the same issue since the last update of Kaspersky Total Protection. The machine slows to a crawl and cpu usage is at 100%. It is locked there and won't budge, even after terminating several applications. I'm running Windows 7 Pro 64 bit on an HP 9470 laptop with a 1TB Samsung SSD drive and 16 GB ram. This is extremely frustrating. I'm about ready to ask for a refund on the 3 year license I purchased. Any help would be greatly appreciated.