What drive is this? Unknown drive in Windows 10 defragmenter

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unplanned bacon

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Colif
Okay, fix was wrong word. I just meant, if he wants to tidy drive up, the only way to do it would be a clean install. Don't have to do it really, just makes it tidy. Not like 351mb is a lot to loose.
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Colif

Colif

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well, defrag runs once a month on the ssd if you have shadow copy enabled, otherwise known as system restore. I would just ignore it as PC looks after it, and its auto... sort of like defrag is. If you don't defrag, the PC will do it in idle times.

that really long number is likely to be the Global Unique Indicator for the ssd, its how the UEFI Bios knows what drive to boot off, every GPT drive on earth has a unique id.
 
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U

unplanned bacon

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I don't know why defrag was on for the SSD, I turned that off when I saw it. I've turned it off before,but it turned back on at some point. Also, you see in that disk management screenshot my recovery partition is unnamed for some reason, can I fix that?
 
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Colif

Colif

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This is from MIcrosoft

Storage Optimizer will defrag an SSD once a month if volume snapshots are enabled. This is by design and necessary due to slow volsnap copy on write performance on fragmented SSD volumes. It’s also somewhat of a misconception that fragmentation is not a problem on SSDs. If an SSD gets too fragmented you can hit maximum file fragmentation (when the metadata can’t represent any more file fragments) which will result in errors when you try to write/extend a file. Furthermore, more file fragments means more metadata to process while reading/writing a file, which can lead to slower performance.

As far as Retrim is concerned, this command should run on the schedule specified in the dfrgui UI. Retrim is necessary because of the way TRIM is processed in the file systems. Due to the varying performance of hardware responding to TRIM, TRIM is processed asynchronously by the file system. When a file is deleted or space is otherwise freed, the file system queues the trim request to be processed. To limit the peek resource usage this queue may only grow to a maximum number of trim requests. If the queue is of max size, incoming TRIM requests may be dropped. This is okay because we will periodically come through and do a Retrim with Storage Optimizer. The Retrim is done at a granularity that should avoid hitting the maximum TRIM request queue size where TRIMs are dropped.
Click to expand...

https://superuser.com/questions/1150641/should-i-defragment-my-ssd

Windows keeps turning it on. Thats why
 
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U

unplanned bacon

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OK, so leave it on?
I'm pretty sure my recovery partition had a name in disk management, but it doesn't now. It's also empty.
What percentage of my drive should I have set to recovery? It's at 1%
 
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Colif

Colif

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It ignores you anyway so just ignore the defrag thing

don't worry about recovery partition, next build of win 10 will recreate it if it needs it. Mine is 100% free space so its not really essential. I didn't have one at all until a version update released new build of win 10 and made one. think its used during the update process.
 
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bloodroses

bloodroses

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By chance, is your OS an upgrade (like Win7 or 8 to 10)? I had noticed when I did my upgrade, I ended up with an empty partition as well since a new recovery partition was created for Win10 instead of using the one Win8.1 had.
 
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unplanned bacon

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It was originally round the right way and then at a reinstall of Windows it got messed up and left unallocated space as the first partition. That unallocated space was the recovery partition. Then I tried to get rid which broke Windows because it's a partition that appears before Windows. The reinstall left it without a recovery partition and the Windows 10 upgrade put a recovery partition after the OS install rather than use the unallocated space left behind by the very first Windows 8.1 install. I wasn't going to try and move/get rid off it given what happened last time so I let it be.

Bear in mind this machine is the first time I've ever built a computer, let alone installed/reinstalled an OS so I was just figuring it out and stumbling through

EDIT: I have tried to correct that in the past, but the results were far worse than just leaving it. Samsung Magician has taken that first partition as over provisioning space now anyway
 
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unplanned bacon

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It is an upgrade from 8.1
The partition at the beginning of the drive was initially 8.1's recovery partition which, when it was reinstalled it didn't use again. In fact it didn't have a recovery partition until it upgraded to 10 which is when it created that 450 MB partition you see after C drive
 
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Colif

Colif

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only way to fix it is fresh install win 10, if you do it clean and delete all the partitions, win 10 will create its default ones and clean drive up a bit. Since its GPT it will create 4 partitions.

you can't merge partitions in front of C into C so its pretty useless where it is. 351mb isn't a lot anyway but its untidy.
 
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SkyNetRising

SkyNetRising

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There's nothing to fix.
That unallocated space 351MB is, where bootloader partition was before. It obviously got deleted for some strange reason.
It can be recreated, but at this point - not really necessary.
 
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Colif

Colif

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Okay, fix was wrong word. I just meant, if he wants to tidy drive up, the only way to do it would be a clean install. Don't have to do it really, just makes it tidy. Not like 351mb is a lot to loose.
 
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