I have a Windows 8 machine that started running very slow. Running Windows 8 X64. When I look at the task manager it shows that the disk is at 100%. I have tried to run Adaware on the drive to no avail and finally removed the drive from the system and ran it on my Windows 7 machine. It ran clean.
I have tried a system restore as well but to noavail, the system is just as slow as molasses. When I booted into SAFE mode I got an error ... I/O error status of )xc0000185. Some threads talk about a virus and some mention HD issues. The HD is a WD3200BPVT and it is not old. Manufacturing date of December 2013.