MacBook Air 500gb HDD now full 375gb hidden files

[Bravo2zero]

Hello I've got MacBook Air 2017 and on 10.15. My system has a 500gb SSD Nvme and since upgrading to 10.15 the storage has gone from 350gb free to 37gb. I have deleted a 75gb file of zips I downloaded but system still saying 37gb free ??

I have downloaded daisy disk and its reporting 375gb hidden which it won't access.

how can I free up this ?

 

[tamaralig]

Do you have Time Machine on? If so force a backup and see if that increases the available space. I have a similar issue, because for some reason after my backup on the 10th, it's been stuck at preparing backup and not moving and I've watched "Other" in storage increase or if it's attempting a backup, it gets stuck on Calculating. I had this same problem when macOS Mojave first went into Beta. I can't find my docs on the Terminal Commands that will flush the snapshots that I used to clear it up in Mojave.

 

[AZhappyjack]

Do you have Time Machine on? If so force a backup and see if that increases the available space. I have a similar issue, because for some reason after my backup on the 10th, it's been stuck at preparing backup and not moving and I've watched "Other" in storage increase or if it's attempting a backup, it gets stuck on Calculating. I had this same problem when macOS Mojave first went into Beta. I can't find my docs on the Terminal Commands that will flush the snapshots that I used to clear it up in Mojave.

To turn OFF local snapshots entirely via Terminal:

sudo tmutil disablelocal

To list existing local snapshots:

sudo tmutil listlocalsnapshots /Volumes/

The snapshots will be listed with a timestamp.

To delete existing local snapshots by timestamp (from above):

sudo tmutil deletelocalsnapshots 2017-10-20-002004

 

[TimothyR734]

Just in case anyone who is running Catalina and notice free disk space is shrinking you might try this to recover some space There are 2 places now where the snapshots are stored due to the system being separated now.

In terminal list them separately with

tmutil listlocalsnapshots /

tmutil listlocalsnapshots /System/Volumes/Data

If you wish you can then manually delete them with

tmutil deletelocalsnapshots <snapshot_date>