Help!!!! Read only hard drive issue despite correct formatting.

Initially you said:

I got a work computer that was on BigSur and when I turned it on, it asked me to upgrade, so I went a head and got Monterey.

If you go to System Preferences is that a pane titled Profile or one you do not recognize. I ask since you Mac may be managed by your employer and they can control things like connecting to external drives.If you do not recognize one open it and see what it does.

Please be more specific. What model Seagate drive is it?

Is the format MacOS Extended ...

... Journaled,

... Journaled, Encrypted,

... Case-sensitive, Journaled or

... Case-sensitive, Journaled, Encrypted

In Get Info, Under sharing & permissions what exactly does it say? (A screenshot like the one below would be helpful.)

Skittleschallenge wrote:

I connect my harddrive to the computer and although it shows up, it’s read only. I can’t delete the material from this harddrive, so I can’t erase it, since it is not backed up and I’m traveling right now.

What make/model external drive is this?

What is the format of the drive?

Was this drive originally initialized & formatted on a different Mac?

How do you have it connected it to your Mac?

Select the drive, then do File > Get Info from the menu strip (or CMD-I from the keyboard). In the Get Info window, what are the permissions under Sharing & Permissions?

What are you using the drive for?

Now if you create a new Time Machine disk the Time Mach8ne setup automatically makes it Read Only except to Time machine with APFS format..

You can still however, erase the drive.