Fix Windows Vista 0×80070020 Backup Error

While performing backups you may encounter the following Windows Vista 0×80070020 backup error:
"Error: 0x80070020 - The process cannot access the file because it is being used by another process"
Cause
This error message may occur due to one of the following reasons:

• You have ActiveSync or some other tool that synchronizes files between your desktop and a device enabled on your Vista PC.
• The Auto-protect or real-time protection feature of your Antivirus tool is enabled.

Resolution
Depending on the cause of the error, you may perform the following tasks to resolve the issue:

• Turn off the file synchronization utility, and/or
• Disable your antivirus tool’s auto-protect feature before performing the backup.

Note: Remember to re-enable the Auto-protect or real time protection feature of your antivirus tool after the backup process is complete.