If you’re using any of the Microsoft’s Windows 7, 8, 8.1 or 10 operating systems and you’re encountering this error when you try to partition your newly-installed hard drive or shrink a volume, you need not to worry. There’s a simple solution.
Particularly users who utilize their SSD drives as their system disk encounter this error, which is caused by the manual deactivation of the Disk Defragmenter service or automatic deactivation of the same service through some software developed by SSD drive manufacturers, such as Samsung Magician. This is done because, well, you don’t have actual fragmentation in SSD drives, because of their non-mechanical structure and defragmentation can do essentially more harm than good to your SSD in terms of lifespan.
1. Open your Start Menu and type “Services”, and click on the Services shortcut. You can access the same panel by using the keyboard shortcut “Windows+R” and then typing “services.msc” as well.2. You should be looking at a list of services Windows provides. Look for the “Disk Defragmenter” service there. If this is the cause of your problem, you’ll see that it’s “Disabled”.
3b. If you’re still having the same error, open the “Services” panel, right-click on the “Disk Defragmenter” service and click “Start”, and wait for the service to start.4. Congratulations, you won’t be seeing this error when using the Disk Management service from now on.
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