I use Windows 8.1 and lately, sometimes it's been running very slow.
Yesterday I could do absolutely nothing so I've given it a reset. After
that it started to boot very slowly I think I've made a reset again.
The boot was even slower then before. I've restarted the computer.
I've made to a point to do automatic repair, which has had a problem with my HDD it has asked
me whether do I want to come back to factory settings I've said No and clicked cancel.
And so, the system started to load up and giving me a message: No boot device available SATA 1: Installed
Strike F1 to reboot, F2 to run setup utillity
Up to this moment I've made a switch between AHCI/RAID SATA mode, setting Bios to default settings, UEFI/Legacy Boot modes to see what happens, nothing yet. Is there an answer to this problem? simple solution maybe? how can I roll back the system to the last known working setting