One day, the above message started to show up in my girlfriend's Macbook. Initially, I asked myself - "What is a startup disk?" Is it some sort of special disk partition that Apple uses for starting up programs? Later on, I found out that this really just means that the hard disk (of which the Mac OS is installed on) is almost full. What is the best way to solve this issue? Read on!
Since this message indicates that your hard disk is almost full, the best way to deal with this issue is simply to remove away unwanted file. Follow the steps below to free up space:
1. Download the free software "Disk Inventory X" .
2. Install the DMG file that you have downloaded. You can do this by:
(a) Double clicking on the DMG file. This will open up another Finder window.
(b) Now, drag the "Disk Inventory X" application into your "Application" folder.
For more information, you can check out this video.
3. Now, go to "Application" and start "Disk Inventory X". It will ask you which drive you would like scan. Select "MacIntosh HD" and click "Open Volume".
4. Wait for some time. The program is scanning through hard drive to built a map.
5. You should see many coloured squares on the new screen. These squares represents particular file. The larger the square, the more space it is taking up. (The colour represents file type.)
1. Download the free software "Disk Inventory X" .
2. Install the DMG file that you have downloaded. You can do this by:
(a) Double clicking on the DMG file. This will open up another Finder window.
(b) Now, drag the "Disk Inventory X" application into your "Application" folder.
For more information, you can check out this video.
3. Now, go to "Application" and start "Disk Inventory X". It will ask you which drive you would like scan. Select "MacIntosh HD" and click "Open Volume".
4. Wait for some time. The program is scanning through hard drive to built a map.
5. You should see many coloured squares on the new screen. These squares represents particular file. The larger the square, the more space it is taking up. (The colour represents file type.)
6. Click on a large square and the left hand pane should show the corresponding file.
7. Verify that you don't need the file anymore.
8. Delete it by right clicking on the file name and select "Move to Trash".
9. Repeat step 6 to 8 until you have deleted enough files. I would aim to remove up to at least 10GB of files.
10. Empty your Trash bin. Otherwise, the files are still on your hard disk.
You can check a video that shows a summary of the above steps via this link.
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