Data Deduplication – Garbage Collection


Recently had a situation where I wanted to immediately reclaim the free space after deleting a vast amount of data from a disk with Data Deduplication enabled.

After searching through the Microsoft Docs I came across this page: Microsoft Docs Reference

Scroll down to ‘Garbage Collection jobs’.

I ran the below PowerShell command to start the Garbage Collection task. Replace ‘E:’ with your drive letter. 

Start-DedupJob E: –Type GarbageCollection