When enabling BitLocker encryption option, VSS snapshot may fail.

Summary

When enabling BitLocker encryption option, as DIFF area is not secured when taking VSS snapshot, you may get the following error.

Log name:         Application Source:             VSS Date:               2023/01/17 21:13:17 Event ID:           4001 Level:              Error  Description: Volume Shadow Copy Service Error: DIFF area for creating a shadow copy was not found. Please add at least one NTFS drive with enough free space on your system. Before taking a shadow copy, please make sure the respective volumes have at least 64 MB of free space.  Operating Procedures:    Differential area volume is automatically selected.    EndPrepareSnapshots is running.  Context:    Volume Name: \\?\Volume{51211c0c-7694-4b2d-8a8c-47d1fe98930a}\    Volume Name: \\?\Volume{64e7cf47-bb48-4242-8fee-03dc758f74de}\    Volume Name: \\?\Volume{67154899-782c-4131-b33a-be284ef292af}\    Execution Context: System Provider

Workaround

Decrypt BitLocker or add an NTFS volume which is not encrypted and DIFF area can use.

Target Product

- ActiveImage Protector 2022