---
title: "Change Volume Shadow Storage (VSS) EFI Location"
slug: "how-to-3"
updated: 2024-08-22T15:03:06Z
published: 2024-08-22T15:03:06Z
canonical: "kb.ctera.com/how-to-3"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.ctera.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 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.