Change Volume Shadow Storage (VSS) EFI Location

Microsoft's Volume Shadow Copy (VSS) is a service that creates and maintains snapshots (“shadow copies”) of disk volumes in Windows. CTERA uses VSS when taking a snapshot. You can change the VSS location to be under the C: drive. 

Step-by-step guide

1. Right click the C: drive and select Configure Shadow Copies…:
   
   The Shadow Copies window is displayed.
2. Select the EFI partition, which is often displayed as \\?\Vol... and click Settings...:
   
   The Settings window is displayed.
   
3. In the Storage area section, select C:\ in the Located on this volume drop-down as the destination for the shadow copies location for the EFI partition and No Limit for the Maximum size option:
   
4. Click OK in the Settings window and in the  Shadow Copies window.

The EFI location is defined in the C: drive.