Disable Disk Defragmenter SSD

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I would normally disable disk defragmenter in Computer/Manage/Service and Application/Disk Defragmenter. Why is Samsung Magician requesting that it be turned back on for Over Provisioning?
 
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Not RAW partition, unpartitioned "RAW" space.

So if you have a 100GB drive and create an 80GB partition on it you will have 20GB of RAW unpartitioned space.

The OP space is created after Windows install. The Windows partition is already formatted to ntfs. So Magician uses some of this ntfs partition to create the OP?
 
Looks like you already have OP enabled.

It's a bit buggy when detecting if defrag is enabled, I had to fiddle with it after enabling defrag to get it to see it was enabled and remove that message about defrag. Try a reboot or changing the drive in the drop down to another if you have one and then back again.

Here's mine with the default 10% OP set.

W49cdwmB.jpg

I don't know why it's requesting defrag to be turned on. When I first tried to create the op, it wouldn't let me do it until I turned defrag bon. So I turned it on, created the op then disabled it and now it wants me to enable it.
 
Just found this:

Quote:

"On Windows 8, the Disk Defragmenter is now named the Optimize Drives tool. It will optimize disks by defragmenting them if they’re mechanical or sending TRIM hints to them if they’re SSDs. This means that running another program that sends TRIM commands on a schedule is completely unnecessary on Windows 8, although even Windows 7 shouldn’t need this feature."
 
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