How to See if Your Hard Drive is Dying - How-To Geek.
There are few things more annoying than a dead hard drive. If you don't back up regularly, (note: back up today!) you can find yourself with lost files and photos and other essential stuff.AT that point, even McCoy can't help you. Unless you are backed up to the cloud, even backup media can die. Modern SSDs are less likely to fail (no moving parts), but an ounce of prevention is worth a pound of cure. First, if you have any problem at all, it is a sign that the drive may be failing. The good news is that hard drives rarely fail all at once. You get warnings. So, download CrystalDiskInfo, which is a free utility discussed in this How-To Geek post. But, make sure you uncheck the box prompting you to install a browser widget. I hate when they do that stuff, but the program is worth it.
Follow instructions, and then buy a new drive. Do it now. Do it today. You'll be glad you did.