error code 0x80070020

I am using windows 7 and trying to backup to a removable device.The backup does not complete successfully and I get a message of "the process cannot access the file as it is being used by another process". The only way of getting round this is to restore the computer to an earlier date which is not what I want to do. Any easy to follow advice would be appreciated

Have you made any changes in the computer before this issue occurred?


Method 1: Check the backup supporting serviced status.

Please check that the following services are enabled:


A.   Volume Shadow Copy (VSS) - "Manual"

B.   Microsoft Software Shadow Copy Provider (SWPRV) - "Manual"

C.   Remote Procedure Call (RPCSS) - "Automatic"

D.   COM+ Event System (event system) - "Manual" & "Automatic"

E.   System Event Notification Service (sens) - "Automatic"

F.    Windows Backup – “Manual”


To check the services status

1.   Click Start and type Services and hit Enter.

2.   Make sure these services are set accordingly.

3.   Right click the services and click Properties.

4.   Reboot computer and then check


Method 2: Run System File Checker tool.

How to use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7


Method 3:

You may also try to temporarily disable security software from the computer and try to create a backup and check if it works. If you are able to create a backup, you may contact the security software Manufacturer and check if you need to change any settings

Disable anti-virus software


Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you should not disable your antivirus software. If you do have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you are connected to the Internet or a network during the time your antivirus software is disabled, your computer is vulnerable to attacks.


Method 4: Perform clean boot and check.

How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7

Note: Please go through step 7 of the Kb to keep the computer in normal startup after fixing the issue


Please try to backup by closing other running applications.

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Question Info

Last updated November 24, 2020 Views 10,871 Applies to: