Sweep your Mac clean

A recent sweep of my MacBook Pro recovered 10 gigabytes of space lost to some unexpected hidden files. Find out how to sweep your Mac.

Sweep your Mac clean
Mac Tip #364, 12 November 2008

When I did a sweep of my MacBook Pro recently I recovered 10 gigabytes of space lost to some unexpected hidden files.

Because the files were hidden — their names began with a dot — of course I had no idea they were there. I was just mystified that free space on my hard drive seemed to have disappeared.

How I found the wasteful files

I run OmniDiskSweeper over my hard drive.

I downloaded a small piece of software called OmniDiskSweeper and set it to run. OmniDiskSweeper is free, but ~~US$15~~ activates a handy Delete button that can save you some time later. [Update: in 2009 the full version was released free.]

The list of files - left

It took a while, but after several minutes OmniDiskSweeper produced a listing of all files and folders on my Mac, with sizes beside each.

I quickly saw that Users > Miraz claimed around 60 Gb of space. Then I clicked on Music > iTunes > Podcasts.

The list of files - middle

I saw that the Rocketboom podcast was using around 840Mb of space — odd since I’d deleted all the episodes I’d watched and there were none waiting for me.

Then I spotted it: the .indelible-info folder that contained a bunch of items inside a folder called deleted. I could see podcast episodes dating back many months, all of which I thought I’d removed from my computer.

When I first examined my hard drive a few weeks ago I found a lot of these .indelible-info folders. By removing most of them I reclaimed nearly 10% of the space.

The list of files - right

Warning: don’t delete files unless you know for sure what they are. The Operating System hides some files for good reason — delete the wrong files and you can severely mess up your computer.

Try a sweep of your Mac and see what it turns up.

Tagged as: Finder, hidden, invisible, space

See more from: Finder,Leopard,Mac Tips

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* 5 comments… read them below and tell us what you think.

kaylee 1 26 November 2008 at 16:26:35: I recently came across your blog and have been reading along. I thought I would leave my first comment. I don’t know what to say except that I have enjoyed reading. Nice blog. I will keep visiting this blog very often.

kaylee

Andy Piper 2 29 November 2008 at 11:33:03: Miraz, as far as I can tell that .indelible-info folder is a result of unclean shutdowns… can’t find any on my machine. Worth knowing about that app, but hopefully (!) that won’t be a common problem.

Miraz Jordan 3 29 November 2008 at 17:05:14: Thanks for that elucidation Andy.

I have had problems with this machine crashing, so wouldn’t be surprised to find there are stray files.

I plan to wipe this machine over the summer holiday and start fresh.

Cheers,

Miraz

John Ohrmundt 4 5 October 2009 at 17:57:46: This application will also delete a lot of pre-installed drivers that come with mac OS X.

Miraz Jordan 5 5 October 2009 at 18:00:30: Thanks John. That’s good to know. I presume you mean it will allow you to find them so you can choose to delete them?