Looking back at your previous post .. your PC is only four years old and has a good spec. If your HD drive is failing then why not just replace the drive.
About 3 months ago I had a similar problem and bought a new solid state drive from ebay. Re-loaded Win 10 (incredibly quickly) and WOW .. without doubt this has to be the best upgrade you can do for £30. My PC now flies, it takes less than 10 seconds to boot to the welcome screen and 3 seconds to shut down !
Solid state drives are so cheap now and if you dont need 1TB storage why buy it in the first place ?