How to reduce parallels disk size

blues1

Bit poster
I assigned 128GB to parallels disk when I installed my virtual Windows system. However I realised that I don't need so much space for Windows and I'm running out of Mac OS storage.
So may I know how to reduce disk size from 128G to maybe 64G???
p.s I tried the setting in Hardware/Hard Disk 1/Edit. However the size option range is from 128G to 2TB.
Screen Shot 2017-02-24 at 1.04.08 PM.png
 
Back
Top