Dilation

Hi, I was half asleep still when this message came up but it was extremely similar to the title of this post "Caution VeraCrypt is unable to read (or write) to a part of the disk... would you like to write all zeros to that part?" It said something about using a third party tool to repair the disk - however there was no issues with the disk as far as i know as i had done a chkdsk before encrypting. This message came up about75% though encrypting the system volume. It warned that - if it just does...