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Defrag Pauses for Volume Shadow Copy
Dave writes in with a software question
Question:I tried to defrag today and at 3% complete it would pause for volume shadow copy. I can't get around it. It's never done this before and I was wondering if I would be able to disable this somehow. Thanks in advance.
Answer: If this drive that you are trying to defragment is being used for Shadow Copies then trying to defragment it may cause problems. The Volume Shadow Copy service is used to permit different applications and storage management applications such as backup applications to define, save, and use consistent point in time copies of storage data for backup, restore, and other purposes.
If you are using a backup program that uses Volume Shadow Copies then you may want to turn that feature off if you need to defragment the drive. Or you can try to disable or stop the Volume Shadow Copies service on your computer from the services utility.
Here is some more information on defragging a drive with Volume Shadow Copies.