Computer has been running really slow. Got an error from Norton "Error: "8504,104" appears on Norton Security Suite or Norton Business Suite" this instructed to run Norton Power Eraser. The NPE identified RIKVM_C6F09094.sys as a problem. I haven't been able to determine if this is a virus or legit or something else. Some searches say it is part of CyberLink DVD others say it is a rootkit virus. Any thoughts on figuring out what this thing is?