Fixes an issue in which the cluster service takes longer than expected to bring a CSV volume online in Windows Server 2012 R2. This issue occurs when logs of VSS snapshots are accumulated by the Volsnap provider.

Cause. This issue occurs because the Volsnap.sys driver spends too much time marking available space on the volume when holding a spinlock. Resolution. This hotfix is also available at Microsoft Update Catalog. Hotfix information. A supported hotfix is available from Microsoft.

Fixes an issue that generates a "0x0000007E" Stop error. This error occurs when you run a Volume Shadow Copy Service (VSS)-based application on a computer that is running Windows 7 or Windows Server 2008 R2.

This issue occurs because the Volume Shadow Copy driver (Volsnap.sys) calculates the boundary of the free disk space that has copy-on-write protection incorrectly. When the NTFS driver tries to write a new file, the driver queries the Volume Shadow Copy driver (Volsnap.sys) to find the free disk space that does not have the copy-on-write ...

Symptoms. Consider the following scenario: You run the following command on a Windows RT 8.1, Windows 8.1, Windows Server 2012 R2, Windows 8, or a Windows Server 2012-based computer: CHKDSK /Scan <Drive_Letter>: Then you create a transient snapshot on a thin provisioned volume at the same time.

Symptoms. Consider the following scenario: You have a volume that is running on a Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2-based server. You configure Microsoft System Center Data Protection Manager (DPM) on the server. You enable the snapshot protection mode (SPM) on the volume.

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components.

Cause. This problem occurs because the Volume Shadow Copy driver (Volsnap.sys) tries to access a deleted snapshot object. Resolution. Hotfix information. A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article.

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