Symptoms

• Backup succeeded with a warning: "Windows error: (0x800700E1) The operation could not be completed because the file contains a virus or potentially unwanted software."
• Acronis Antivirus and Antimalware protection is not enabled in the Protection plan.

Cause

Acronis Antivirus and Antimalware protection was not enabled in the protection plan so the issue is not related with Acronis antimalware.

The Error 0x800700E1 is the result of Windows Defender or a third party Antivirus program.

Solution

• If the detected file is trusted then add the file in trusted exclusion list of Windows Defender or the third party Antivirus program and try to backup again.
• If detected file is not trusted then delete the file from system and try to backup again.