Reduce disk space used by shadow copy storage
Open a command prompt and type the following
vssadmin list shadowstorage
The below will be displayed.
C:\Users\User>vssadmin list shadowstorage
Shadow Copy Storage association
For volume: (D:)\\?\Volume{ }\
Shadow Copy Storage volume: (D:)\\?\Volume{}\
Used Shadow Copy Storage space: 58.9 GB (3%)
Allocated Shadow Copy Storage space: 61.7 GB (4%)
Maximum Shadow Copy Storage space: 100 GB (6%)
The following command limits the size that VSS can use.
vssadmin resize shadowstorage /for=C: /on=C: /maxsize=50GB