If I have already created an encrypted container, will it be possible for me to use the veraCrypt change password option after it?
I would like to know whether it is possible to change the veraCrypt password after an encrypted container has been created? If it is, what's the process? While going through the internet for the related research, I read an article that explained that - VeraCrypt is a great application to establish and maintain an on-the-fly-encrypted volume. On-the-fly encryption means that data is automatically encrypted right before it is saved and decrypted right after it is loaded, without any user intervention. This is a very secure method of data encryption as any data that is stored on an encrypted volume cannot be read (decrypted) without using the correct password/keyfile(s) or correct encryption keys. The entire file system is encrypted (e.g. file names, folder names, contents of every file, free space, meta data, etc) to give you as much security as possible.
You don't need to change the random key with which everything is encrypted but just the encryption of this key to use the veraCrypt change password option. So yes, it is perfectly possible and therefore you have a menu entry under "System" for doing exactly this. How this works in detail is basically answered here. Implemented in VeraCrypt desktop version 1.24-Update4: Menu bar > Volumes > Change Volume Password…