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Windows Defender Definition Updates folder taking 256 GB of space and not able to delete the files
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Chintan Shah
0
Reputation points
Windows Defender Definition Updates folder taking 256 GB of space and no free space left on C drive. Tried deleting the files but not able to do it.
We are using Sophos Antivirus.
Microsoft Security | Microsoft Defender | Microsoft Defender for Identity
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Dez Wiebe 0 Reputation points2026-06-21T21:25:18.78+00:00 hello, ik this is literally over a year old, but did you ever find a solution to this issue? It is absolutely ridiculous how much space is taken up with every forced update.... over one single update I lost almost 100gb of storage!
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