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#21
Well, first, it is an either/or situation. Checkdisk will either repair it so it can be used or it won't!
Regardless, a hard drive with any bad sectors is failing and on it's way out. It is only a matter of time. Weeks? Months? Who knows?
This is just your official notice to start shopping for a new drive, sorry to say. You are fortunate that you were able to backup your data easily. Many do not get that chance.