Robocopy bug in Windows21H1

Question

I use Robocopy since many years for backup and disk synchronization.
Now I've updated my computer from Windows 10 1909 to Windows 10 21H1 and my scripts failed.

As soon as I use the option /EFSRAW no file is copied.

Under Windows 10 1909
Robocopy /MIR source dest /EFSRAW
Works fine

Under Windows 10 21H1
Robocopy /MIR source dest /EFSRAW
Creates only the folder and copy no files.

Without /EFSRAW it copies the file correctly

I think this is a bug in robocopy
Has everyone a fix for this?

Answer 1

Hi,

The Feedback Hub app lets you tell Microsoft about any problems you run in to while using Windows 10. You can report this issue to Microsoft directly with the Feedback Hub app.

For more information on using the app, click here:

Send feedback to Microsoft with the Feedback Hub app

If this issue is urgent, I would also suggest you contact Microsoft Customer Support and Services where more in-depth investigation can be done so that you would get a more satisfying explanation and solution to this issue.
You may find phone number for your region accordingly from the link below:

https://support.microsoft.com/en-us/gp/customer-service-phone-numbers

Meanwhile, you can also wait for subsequent KB to see if this issue can be fixed.

Best Regards,
Candy

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