Assumption: CloudBacko Pro installation path is C:\Program Files\CloudBacko Pro

To increase the number of concurrent backup threads, follow the instructions below:

1. Make sure there are no active backup or restore job running.
   
   
2. Close CloudBacko Pro UI.
   
   
3. Stop the CloudBacko Pro services.
   
   
4. Go to C:\Program Files\CloudBacko Pro folder.
   
   
5. Open afc.opt file using a text editor such as Notepad or Notepad++.
   
   
6. Add this parameter, obx.core.backup.file.BackupResourceManager.maxConcurrentSubCmd=xx
   A xx value indicates the number of threads. Minimum thread is 1.
   
   Note: Increasing the number of concurrent backup threads does not guarantee that the overall backup speed will be faster since there will be an increased chance of throttling by Microsoft 365.
   
   
7. Start the CloudBacko Pro services.