Backup software can't take server backups in Windows Server 2008 R2 SP1

This article describes an issue that occurs when you use a backup software in Windows Server 2008 R2 Service Pack 1 (SP1). A hotfix is available to fix this issue. The hotfix has a restart requirement.

Symptoms

Assume that you install update 2848443. When you use a backup software to call DeviceIoControl(FSCTL_DISMOUNT_VOLUME), the backups fail, and you receive an error message that looks something like this:

ERROR_ACCESS_DENIED

Hotfix information

Important If you install a language pack after you install this hotfix, you must reinstall this hotfix. Therefore, we recommend that you install any language packs that you need before you install this hotfix. For more information, see Add language packs to Windows.

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that's described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there's a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section doesn't appear, submit a request to Microsoft Customer Service and Support to get the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that don't qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you don't see your language, it's because a hotfix isn't available for that language.

Prerequisites

To apply this hotfix, you must install Service Pack 1 for Windows Server 2008 R2.

Registry information

To use the hotfix in this package, you don't have to make any changes to the registry.

Restart requirement

You have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix doesn't replace a previously released hotfix.
File information

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

See the terminology that Microsoft uses to describe software updates.
Vlastnosti

ID článku: 3078632 – Posledná kontrola: 22. 10. 2015 – Revízia: 1

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