My laptop is an ASUS K53SV Notebook. A few weeks ago Windows 10 started acting odd because it kept slowing down to a crawl and freezing. I thought this was the typical Windows 10 issue and I did what I did before when I had this problem and simply wiped the laptop and reinstalled Windows (it didn't work, I just kept getting stuck at the setup wifi part), I tried this 5 times before I tried installing Windows 7. I experienced the same issue with Win 7, my laptop is unusable because it is too damn slow. I ran CHKDSK and after about 12 hours it got stuck on stage 5 when it was 17% through. Letting it sit didn't do anything so eventually I just shut it down. This is where I am now and the constant slowness and the Check Disk issue leads me to believe there is a problem with the hard drive. I was planning on replacing the HDD with an SSD anyways but before I do so I need to be sure that my hard drive is causing the issue. Any help or advice on how to diagnose that my hard drive is faulty is much appreciated!