# 3 TB My Book for Mac - permission problem

**URL:** <https://forums.sandisk.com/t/3-tb-my-book-for-mac-permission-problem/278173>\
**Category:** External SSD for macOS\
**Created:** [April 11, 2013, 3:09am UTC](https://forums.sandisk.com/t/3-tb-my-book-for-mac-permission-problem/278173 "2013-04-11T03:09:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Clay520](https://avatars.discourse-cdn.com/v4/letter/c/839c29/32.png) [@Clay520](https://forums.sandisk.com/u/Clay520)\
**Post date:** [April 11, 2013, 3:09am UTC](https://forums.sandisk.com/t/3-tb-my-book-for-mac-permission-problem/278173/1 "2013-04-11T03:09:13Z")

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Hi there – first time poster. &nbsp;I recently bought a 3 TB My Book for Mac, which came already formatted Mac OS Extended (Journaled), and I’ve only used it to back up my data from my MacBook Pro. &nbsp;All of my files and folders are there on the external drive, in tact.

However, if I try to drag and drop a folder or file on the external drive into a new location – it makes a **copy** , instead of simply moving it. &nbsp;(So, for example, when I try to move my 100GB music folder into a different folder, I get the pop-up: “Preparing to copy Music…”) &nbsp;Then, when I go to delete the now-duplicated file or folder, it asks for my password (I get the pop-up “Finder wants to make changes. Type your password to allow this.”). &nbsp;

I did some research, which seemed to point to changing permissions under the “Sharing & Permissions” section of the “Get Info” tab – but everything is already set to Read & Write. &nbsp;Some people suggested checking the box next to “Ignore ownership on this volume” – but that didn’t seem to change anything. &nbsp;

The only odd thing is that if I unmount the drive and then re-mount it again, the checkbox next to “Ignore ownership…” shows up **unchecked** , as if that were the default setting or something.

Any help on this would be appreciated!

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**Author:** ![RamonPreston](https://avatars.discourse-cdn.com/v4/letter/r/87869e/32.png) [@RamonPreston](https://forums.sandisk.com/u/RamonPreston)\
**Post date:** [April 11, 2013, 4:52am UTC](https://forums.sandisk.com/t/3-tb-my-book-for-mac-permission-problem/278173/2 "2013-04-11T04:52:42Z")

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Try a freeware program named “Gyula’s navigator.” It SHOULD work on a Mac. It’s great for copying/moving files, etc. Even allows you to see hidden files/folders. Be careful you don’t delete anything important.

Google for it.&nbsp;