Need to add password to Time Machine external disk

Adding a password to an external disk?

I just cleaned of the entire disk and used TimeMachine to save to the disk. But I realized I need it password protected.

How do I add that?

newbiewebSr. Software EngineerAsked:
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Omar SoudaniSenior System EngineerCommented:
1)Launch System Preference>Time Machine icon.
2)Select Disk and choose your hard drive that you want to use for backup.
3)Check  “Encrypt backup disk” and click the Use Backup Disk button.
4)Type in a password.

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newbiewebSr. Software EngineerAuthor Commented:
Omar SoudaniSenior System EngineerCommented:
You're Welcome!
IT Pros Agree: AI and Machine Learning Key

We’d all like to think our company’s data is well protected, but when you ask IT professionals they admit the data probably is not as safe as it could be.

newbiewebSr. Software EngineerAuthor Commented:
I can not select the hard disk. Neither right nor left mouse button does anything...
Omar SoudaniSenior System EngineerCommented:
Can you please check and pictures and tell me which part is not working for you
newbiewebSr. Software EngineerAuthor Commented:
I can only see the drive from Time Machine Preferences and Disk Utility.

And there is no response to a right click or left click.

10.11.6 El Capitan

External HD
External HD 2
Omar SoudaniSenior System EngineerCommented:
If you already set up the hard drive for backup without encryption, you have to move it first and then select it again with encryption and put in your password, the data will remain on the hard drive but it will take a while to finish, check this for more details:
newbiewebSr. Software EngineerAuthor Commented:
This is so strange!

I see no way to even delete them!

I can right click and see no option to delete. Even here, the drive is not selectable...

BUT, from the Edit menu I see I can Erase the disk. Is this my next step?

Not selectable
newbiewebSr. Software EngineerAuthor Commented:
Omar SoudaniSenior System EngineerCommented:
Did it work? I'd say format the external HDD and try a clean job from the scratch.
newbiewebSr. Software EngineerAuthor Commented:
I erased, then created a journaled, encrypted...

but when I try and back up from TimeMachine I get...

Disk not available
I even rebooted my PC, plugged in the drive, and entered the correct password, which I newly assigned.

Disk not found
even though the icon is showing on my desktop.
Omar SoudaniSenior System EngineerCommented:
Try to go to time machine preferences and re select the disk again. Apple menu > System Preferences>Time Machine.
newbiewebSr. Software EngineerAuthor Commented:
It now seems past the password issues and is "working."

But, after the backup is done, I see NO FILES on the disk.

It's like there is a hidden partition where it may be storing the files...

That is not right.

I thought I started fresh but may not have.

I think I need to start all over.

Can you tell me how to erase the disk and format it as a single Time Machine disk?
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