Thanks but I forgot to mention that when I open Bitcoin Core, it says that it had an error reading the database and then I get a runtime error. I'm running Windows 10 and I'm using the latest version of Core.
What is the exact error given? Can you also provide the Debug.log file?
And no, I don't know where the debug.log file is. It's not in the program's files.
In the windows file explorer and in the top bar, type
And hit enter.
The Debug.log file is in there. Post all of its contents here. If it is to large, go to
http://pastebin.com and post it in a new paste there. Then post the link here.
I think you will need to delete a few things to fix the error. Try deleting the chainstate folder and the index folder inside of the blocks folder.