With these things, it’s always a process of elimination.
If you have the ability to, open up your PC or laptop and check the connections.
It works for some people and doesn’t work for others.
There are a lot of different types of malware out there, and if your machine gets infected with it, and depending on the type of malware it is, it can cause serious problems like these.
If that last step didn’t net any results, we can try and see if there are any partition on the drive using Disk Part or another third-party disk utility tool.
Well, if none of the above diagnosis’ have worked, your hard drive is dead and you’re going to need a new one.
Hopefully you backed up all your data to an external source, otherwise you’re going to have to start from scratch or pay a couple grand at an attempt to recover your data through a data recovery service.