I have reloaded windows XP on my sons computer 4 times over the past 6 months. Every few months, a blue screen just shows up, and it has a blue screen and an error :[C0000135] - [Unable to locate component] It says the winsrv file is missing. this has happened 4 times now. Does anyone think that this can be a hard drive gone bad? Any thoughts? I am tired of reloading windows. Thanks.