If you check the system for errors in Windows 10, it will prompt you to check it the next system restart. It normally takes minutes depending on the Disk size and state. But as you can see in the error message itself that it may take an hour to finish – but sometimes, you have to wait for a day before starting the troubleshooting process. If it does not get fixed automatically, you can refer to the aforementioned solutions. A bad sector on a hard drive is simply a tiny cluster of storage space — a sector — of the hard drive that appears to be defective.
Since this is an older question and a lot has happened since asked I figure I would add a couple links to decompilers out there that may be of use to others looking for a solution. It is even free, you won’t need the pro version to see the dissassembled code. If you are able to open the DLL file with a third-party app, you can save it to your computer as a regular file. Now you can open it like any other file on your computer. If you don’t know, you can look inside the file to see if there are any clues about what program to use. You can then take steps to open it so you can use what’s inside, like a program you might not have access to otherwise.
If all the first 6 solutions do not work as expected, you can rebuild damaged MBR with a free partition manager named AOMEI Partition Assistant Standard.…
Owned and operated by an Italian native, now a Carlsbad resident, 
Though a small one, this hipster themed 
Partially constructed by