Symptoms
- You are creating a full backup of your machine
- The Backup operation is successful with the warning "No mounted partitions were found in the operating system information".
Cause
Agent is not able to obtain information about the OS. That's mostly caused by Acronis Managed Machine Service not running under "Local system"
Solution
To resolve the issue, do the following:
- Run Acronis Managed Machine Service under "Local system".
- Make sure that Acronis Managed Machine Service user is assigned all the required rights. For more information, check this Acronis Article
More information
If the suggested solution didn't resolve the issue, collect Process Monitor Log during installation, system information from the affected machine, and contact Acronis Support.