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38gb unallocated space at end of my SSD?

 
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post #1 of 4 (permalink) Old 02-24-2019, 08:26 PM - Thread Starter
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38gb unallocated space at end of my SSD?

So, it's been several years...maybe even 6...since I installed my 256gb ssd drive for my OS. I don't remember what instructions I followed when setting it up. It would have been Win 7 originally, now Win 10. I'm currently getting low on space. Windows says 12gb free of 199gb. So I opened disk management and for that disk, I have the following:

1. 100mb System Reserved
2. C:, 199.93 gb
3. an unlabeled 450mb recovery partition
4. 38gb unallocated space

I think I remember it being a thing in the past that you left some unallocated space that if Windows detects problems with spaces on the drive it could use some of the unallocated space. But I may be totally making that up too.

So, anyone know why I would have 38gb of unallocated space? Any way to access this space and add it to my c: when the recovery partition is in between?

I'm planning a new build soon, but I'd like to be able to access the extra space to limp along a little further.
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post #2 of 4 (permalink) Old 02-24-2019, 09:30 PM
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Usually you leave some free space at the end of an SSD for overprovisioning. This helps to keep it from slowing down.
You can't grow C:\ when there is another partition in the way, unless you delete that of course, but then you would lose the recovery option.
What you can do is create a new partition in the unallocated area. So you'd end up with separate C:\ and D:\ partitions (or whatever letter it decides to use).



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post #3 of 4 (permalink) Old 02-24-2019, 09:40 PM
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Quote: Originally Posted by texas_nightowl View Post
I think I remember it being a thing in the past that you left some unallocated space that if Windows detects problems with spaces on the drive it could use some of the unallocated space. But I may be totally making that up too.
Dunno about that, but the advice given was for overprovisioning. Long story short, erasing flash memory is a relatively slow process, so if an SSD is completely full it can slow down when data is overwritten. However, SSDs already have some spare area built-in. Your 256GB SSD in actuality has ~275GB of memory in the flash chips. (Long story short, 275GB using the base 10 prefix is about equal to 256GiB using the binary prefix. G = 10^9 while Gi = 2^30)

EaseUS Partition Master has worked for me in the past, but I'm not entirely sure the newest free version works or if it just prompts you to buy it after playing with settings. At the very least you should be able to stick the System Reserved partition on the other side of the unallocated space and then expand your C:\ partition into the free space.

Quote: Originally Posted by TheBadBull View Post
someone sig this


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post #4 of 4 (permalink) Old 02-24-2019, 10:10 PM - Thread Starter
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overprovisioning...ok, that rings a bell.

I ended up using minitool partition wizard to move the recovery partition to the end of the disk so next stop is to expand my c: drive into that unallocated space now.

So thanks both of you!
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