I came home a couple of days ago to find the computer running very slowly and unable to re-boot. Found that the cpu cooler fan had failed and assumed that was the problem. Replaced the cooler but no luck. Removed the memory sticks one by one - no difference. The connected the internal HD's leaving only the SSD. It then booted correctly. So it came down to one HD which seems to have failed completely. It (Seagate Baracuda 1000GB SATA) is out of warranty but only around 2 years old. It also contains all my Reflect system images. I have tried in a docking station but is not recognised. Disk Management does not see it all. It is probably a write off but is there anything can be done to it? Never had a failure like this before.