Error 104 on iMac with 388GB free space

Marvinas

As the title says. Can't get it to rectify. Backups are being created using TimeMachine but on a 3TB external drive. Tried to repair update numerous times to no avail. Any ideas?

cyberHippy

No ideas, I have the same issue with 160GB free space, it used to install with 80-90GB free space.

ZOS_DaryaK

Macintosh HD and Finder are both known for over-reporting the amount of free disk space due to the local Time Machine backup. These backup files actually don't get counted against your hard drive space, increasing the amount of "free" space that you're seeing.

To get an accurate measure of remaining free space, try running a Mac OS X System Report and see what that reports back with. To do this, you'll just need to run through the following steps:

Click on the Apple in the upper-left corner of your screen

1. Select the "About this Mac" option
2. Click "System Report"
3. Navigate to the Hardware section
4. Select the Storage option
5. Look for the Hard Drive that you are Using and look for the amount of free space remaining

If this number is still well above the 80GB that the launcher needs to install, please please submit a ticket to our support team and be sure to include a copy of your System Report .spx file. This can be done the following way:

1. Go to the System Report window
2. Go to File on the Menu bar
3. Select "Save" and save it as a .spx
4. Attach it to your email

KhajitFurTrader

If it's indeed local Time Machine backups that gobble up actually available disk space, here's the solution how to free up space used by local Time Machine backups.

Caveat emptor: use at your own risk. It's advisable to make regular system backups via Time Machine or other means to an external disk.