Fixed: Progress is Slow When you Defragment a CSV Volume in Windows 8.1, 10

By: Radu Tyrsina
Less than a 1 minute read

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A plethora of updates and fixes have been issued lately by Microsoft, but we don’t know too much about them. Find below more details on this problem – “progress is slow when you defragment a CSV volume in Windows 8.1 or Windows Server 2012 R2″.Progress is Slow When you Defragment a CSV Volume in Windows 8.1

This issue occurs if the Cluster Shared Volume (CSV) volume is de-duplicated on a Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2-based computer. In this situation, the defragmentation process runs at a speed less than one megabyte (MB) per second (1 MB/sec).


For various PC problems, we recommend this tool.

This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues now in 3 easy steps:

  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patended Technologies (requires upgrade).

Read AlsoEnhanceMy8 is a Great Tweaking and Maintenance App for Windows 8.1

Problems with slow Cluster Shared Volume defragmentation on Windows 8.1 fixed

So, we see that according to Microsoft, this issue occurs when a certain Cluster Shared Volume (CSV) volume is de-duplicated on a Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2-based computer. So, we can see that it’s affecting touch users, as well. Here’s the entire list of operating systems that have received the update:

  • Windows 8.1 Enterprise
  • Windows 8.1
  • Windows 8.1 Pro
  • Windows RT 8.1
  • Windows Server 2012 Datacenter
  • Windows Server 2012 Essentials
  • Windows Server 2012 Foundation
  • Windows Server 2012 Standard

Regular Windows 8.1 users don’t have to deal with CSV volumes, naturally, so the point of this article is to inform IT experts and other pundits in this field of the improvement.

Read AlsoInstall Windows 8.1 on SSD – Steps to Follow

For various PC problems, we recommend this tool.

This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues now in 3 easy steps:

  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patended Technologies (requires upgrade).

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