My plan is as follows. Remove existing hard drive and insert it into a dock on my desktop and run diagnostics on it to check the state of the drive. If nothing is wrong, I am gonna be installing the OS. If it still has problems, I'm gonna be installing a new hard drive with a system recovery installed on a partition. He said the OS was completely installed so I'm betting it's a bad hard drive. He said the laptop was refurbished but as we all know, people lie to make a buck. So I'm gonna check the drive and go from there.