Thanks Ronni, that summarises it nicely.
Severin

Sent from Sev's iPad

> On 14 Mar 2019, at 5:09 PM, Ronni Brown <[email protected]> wrote:
> 
> Hello Severin,
> 
>  Scan the disc as Administrator 
> https://daisydiskapp.com/manual/2/en/Topics/AdminScan.html
> 
> Hidden Disk Space
> Strange hidden space may also be caused by a third-party backup application 
> that created a temporary disk image and then terminated abnormally without 
> cleaning it up. Use ls -la /Volumes/ command in Terminal app to check if this 
> is the case.
> https://daisydiskapp.com/manual/2/en/Topics/HiddenSpace.html
> 
> Kind regards,
> Ronni
> 
>  Ronni Brown’s iPad Pro 12.9-inch 256GB 
> 
> 
>> On 14 Mar 2019, at 4:06 pm, Severin Crisp <[email protected]> wrote:
>> 
>> I became aware of a reduction in free space on my MacAir, 250GB SSD, High 
>> Sierra.  Daisy disk shows 84GB of Hidden Space sure enough.   I've so far 
>> been unable to locate this except that it is in the system, total nearly 
>> 100GB.  Pointers on how to find and remove this please!
>> Severin Crisp
>> 
>> ________________________________
>> Assoc Prof Severin Crisp, FIP, FAIP
>> Clarence Estate, 55 Hardie Rd,
>> Albany, Western Australia, 6330
>> (Home:  15 Thomas St, Mount Clarence,
>> Albany, Western Australia, 6330)
>> Ph 0484 624 741
>> Email: [email protected]
>> ________________________________                  
>> 
>> 
>> 
>> 
>> 
>> 
>> 
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