Windows Server 2008 / 2008 R2

When contacting Acronis Customer Central with a technical issue, it is recommended to have Acronis System Report at hand


Backup with activated Volume Shadow Copy fails with the following error similar:

The backup has failed because 'VSS Writer' has failed during snapshot creation.

This error can be produced by different VSS writers, see some examples below:



This issue applies only to Windows 7 and Windows 2008R2

1. You create a backup plan backing up to a local folder with replication to a network folder

2. After backup runs 2-3 times, backup plan fails with the following error:

 Archive with the same name already exists.


Windows Defender is disabled on a Windows Server 2008 machine.

The following warning appears in alerts:

Warning Windows Defender module execution failed (WDAAdapters::Error in Acronis::Adp::WbemServicesGuard::WbemServicesGuard "ConnectServer" failed w/code 0x8004100e)