All of a sudden I've run out of space. On my 250GB hard drive, 236GB is used up with only 13GB free.

I used Finder to find big files. Nothing significant.

I used tools like Disk Inventory X, OmniDiskSweeper and Purple Tree, but according to them I've only used up 40GB.

So somehow 200GB is used up, but I can't see where.

Time Machine isn't running (and never has). The disk has no partitions.

Screenshot of Disk Utility

Screenshot of Disk Inventory X

Screenshot of OmniSweeper

Screenshot of Purple Tree

  • Related apple.stackexchange.com/q/42838
    – kal-al
    Commented Jun 7, 2016 at 22:09
  • Try DaisyDisk: itunes.apple.com/us/app/daisydisk/id411643860?mt=12
    – owlswipe
    Commented Jun 8, 2016 at 0:46
  • Great suggestion! I just tried DaisyDisk. When I scanned as an admin, I found 187GB in the hidden ".DocumentsRevisons-V100" folder. It's the Autosave version that it seems OS X has started doing. Why did this happen? What's the best way to deal with it? It looks like some people just delete these files, but how do I prevent it in the future? Commented Jun 8, 2016 at 15:01

4 Answers 4


I scanned my drive with DaisyDisk, and as an administrator. (Instructions) I found 187GB in the hidden ".DocumentsRevisons-V100" folder. These are document versions which the OS autosaves (more info). It appears to be from documents primarily from the app Sketch.

Screenshot of DaisyDisk scan

Here's how I removed the files.

  • Open Terminal
  • Paste defaults write com.apple.finder AppleShowAllFiles YES (This makes all hidden files visible)
  • Relaunch Finder. You can hold down "Option" and then right click Finder. Click Relaunch.
  • Look within the folder Macintosh HD/.DocumentRevisions-V100/ (For me there were a number of underlining folders with lots of files within.)
  • Delete the folders and files within.
  • Empty the Trash
  • In Terminal paste defaults write com.apple.finder AppleShowAllFiles NO . This makes hidden files hidden again.
  • Relaunch Finder again. Click the System Apple top left, then "About this Mac" and then "Storage." Breathe a sigh of relief.

Screenshot of hard drive storage

Here's some articles I referred to:


I did it the old fashioned way and created a cron job.

`#!/usr/bin/env bash 
 export DIRECTORY="/.DocumentRevisions-V100/.cs/ChunkStorage"
 if [ -d "$DIRECTORY" ]; then
    # Delete file
    rm -rf /.DocumentRevisions-V100/.cs/ChunkStorage/*

With a cron job to remove at noon.

crontab -e contents 0 12 * * * /bin/bash /SCRIPTS/remove_chunkstorage_sketch.sh

  • Do you mind taking a minute and explaining what your code does and how it answers the question? Some people will not understand what ChunkStorage is.
    – ʀ2ᴅ2
    Commented Nov 26, 2018 at 18:13
  • 1) Checks for the folder in question (the one that stores the versions) 2) if folder exists, it empties the folder with the versions. I created a cron job to run this every day at noon.
    – amatusko
    Commented Nov 27, 2018 at 22:50
  • I'd never run such a script. Any script with rm and * in it is begging for disaster. A extra blank in the wrong place will be a disaster. Commented Dec 24, 2018 at 0:11

There is a simple way to solve this problem. You can use the built in utility of macOS to see and clear unwanted files, hidden files/folder easily.

Go to the  > About This Mac menu on left top, go to storage section and click the Manage... button. In the document section you can see all the files and folders with their size and delete unwanted files.

Go through this guide for further info.

  • That doesn't work for hidden files. In my case the hard drive is almost full (10GB left) but if I look at "about this Mac > documents" nothing big shows up. Commented Oct 9, 2020 at 10:09

Failure message

In my case I was doing backup for my iPhone and it failed with error message: Not enough disk space.

After this message disappeared 230GB. It was not shown anywhere. Restart did not helped. I did opened MobileSync Backup folder and here was huge folder. I did delete it manually and cleaned trash bin.

Backup dir

/Users/<USER_NAME>/Library/Application\ Support/MobileSync/Backup

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