What does āunallocated spaceā on a hard drive mean? Is it just sitting there, waitingĀ to be used when needed or what? My hard drive is now divided into two halves ofĀ 250GB each. I would like to have the whole hard drive clean and free. IĀ searched your archives but there is nothing on deleting a stuck partition.
Well, in a sense, it is just sitting there, waiting to be used. The problem isĀ that itās waiting for you to tell it how it should be used.
Basically, you have an empty, unused partition and you need to decide how youĀ would like that space to be used. Then, you need to tell Windows to use it.
Fortunately, this is pretty simple in Windows 7 and doesnāt require anyĀ additional tools; basic partition management and rearrangement is built rightĀ in.
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Unallocated
Fire up the disk manager (right-click Computer, click Manage and thenĀ click Disk Management), and Iām guessing that youāre looking at something similarĀ to this:
That line represents a single physical hard disk that is divided into threeĀ partitions:
- System Reserved ā You may have something like this, aĀ recovery partitions, or perhaps nothing at all.
- C: ā This is the partition that contains your C: drive.
- Unallocated ā This is the partition in question.
That unallocated partition represents disk space that will not be used untilĀ you allocate it. There are typically two approaches.
Format it as an additional drive
A very common approach is to simply create a new drive out of theĀ unallocated space.
Right-click that Unallocated drive and click New SimpleĀ Volumeā¦
This starts the āNew Simple Volume Wizardā. Click Next onĀ the resulting dialog to be taken to the page where you specify the volumeĀ size:
The default answer is to use all of the available space, which is probably whatĀ you want. If you want to break the unallocated space into multiple drives, youĀ might choose a smaller size.
Click Next and youāll choose the drive letter to beĀ assigned to the new partition:
Once again, the default is probably appropriate, unless you have a specificĀ reason to change it.
Click Next and youāll specify formatting options:
The answers to the default are typically appropriate, although this is a good timeĀ to specify the Volume label.
Click Next to get a summary screen for confirmation, andĀ then Finish to complete the operation. Windows then formats
the drive and when complete, it appears as ājust another driveā on yourĀ system:
You can begin using the new drive immediately.
Expand the adjacent drive
The other approach, which in previous versions of Windows required third-party tools, is to simply expand an adjacent volume to use the unallocatedĀ space.
In our example, weāll right-click the C: drive, and click Extend Volumeā¦
That option should only be available if thereās room to expand ā meaningĀ that thereās an unallocated partition following the C: partition.
This time, weāll start the āExtend Volume Wizardā. Clicking Next takes you to the āSelect Disksā dialog:
This somewhat confusing step is all about selecting which partitions on the diskĀ are to be added to the volume that weāre extending. The good news is that in thisĀ simple and common case ā an unallocated partition immediately following the C:Ā drive ā the dialog is pre-loaded with default choices that are probably whatĀ you want: extend into the entire unallocated partition.
So all we need do is click Next.
A summary screen confirming our choice appears. Click Finish, and Windows begins the operation.
When complete, the unallocated partition is gone and the C: partition isĀ larger:
the problem is that some disk types max out and wonāt let you use the unallocated space.
I am trying to figure out how to overcome the 2TB restriction on System Active Primary Partitions. I removed windows from it but it still wonāt extend.
I have a partition labeled Healthy, Primary Partition with 12 GB showing use is 0%. Right click only give on active menu item ā Delete Volume. What is that partition and is that 12 GB really unused?
10-Aug-2011
Works fine for most computers. But a new Laptop sometimes refuses to create a new simple volume saying that the maximum number has been reached. The machine suggests you craete a dynamic volume instead. A user like me ( a non-techie) does not know what this means and what it would do. This possibility remains unanswered by you and I look forward very anxiously for a solution.
Iām still using XP Pro until I HAVE to go to Win7.
Any advise?
10-Aug-2011
@Snert: buy a commercial product like Partition Magic (Shareware, not free) or look for a free product at your own risk.
Re comment by dr d b karron at August 9, 2011 8:17 AM. I have the same problem and I have Win 7 64 bit and hav this section on my 2nd internal hard drive which has two partitions plus the healthy primary partition which I canāt I canāt do anythng with except Delete Volume and I donāt know what would happen if I deleted the volume. Would it just affect that healthy primary partition or would it affect all partitions on that drive?
I have 410Gb of āFree Space connected with my Healthy Boot partition (i.e., the āCā drive). Whenever I tell disk manager to create a new volume out of this space, it walks me through the steps and then tells me thereās not enough space to perform this action (Iāve tried using he max indicated amount of space and several smaller allocations and get the same result every time). Any idea why I canāt use this āFree Spaceā?
@ jake. Might be wrong free space. It has to say āunpartitioned spaceā if you are using the basic windows disc.
Thank you verry mutch!I didnāt now what to do and now you realy helped me A LOT!Lot of thanx again!
i had partition the system hardisk, which has the 450Gb. while partitioning the drive which shows like you cann`t create a new volume in this unallocated space because the disk already contains the maximum number of partitions..
Hi, Leo!
Your article about the unallocated disk space is really great. itās easy to follow. Hereās my problemā¦ I followed exactly the first way. but in the end my laptop said this, āThe operation you selected will convert the basic disk into a dynamic disk. If you convert the disk to dynamic, you will not be able to start installed operating systems from any volume on the disk (except the current boot volume). Are you sure you want to continue? YES/NOā
I clicked yes. It returned another message that said, āDynamic disks are not supported by this operating system or server configuration. Dynamic disks are not supported on clusters. YESā
I just clicked yes.
In the end, I still have the 149 GB unallocated. I just want to use this because i am running out of space in my C. I hope you can help me further on this.
thanks in advance.
By the way, Leoā¦ I also tried the 2nd way you stated in this article. Unfortunately, when i right-click the C to expand its volume (hoping that the unallocated could be transferred in C), the āextend volumeā and ādelete volumeā are unclickable. Only the āshrink volumeā is clickable. Oh please, please help me. Thanks.
I have the same problem
You mean, when my computer was telling me I didnāt have any more room on my C drive, I could have extended it by reallocating one of the other allocated drives?
Hi
You told us how to creat a primary partition out of an unallocated partition
My question is taht how can we create three new logical partition out of the unallocated space ?
08-May-2012
Hey ārodjojuā, I am facing the same problem as you did.
āThe operation you selected will convert the basic disk into a dynamic disk. If you convert the disk to dynamic, you will not be able to start installed operating systems from any volume on the disk (except the current boot volume). Are you sure you want to continue? YES/NOā ā¦ā¦
Any solution to this? please keep me informed, urgent
thank you so much Leo!!!
Thank you sir for given that solution to make partition.
i am facing the same problem as rodjoju and sandeep that the basic disk will be converted to dynamic disk. please help as i have no clue about what to do further and i m having 212 gb of unallocated disk space..
So, one of my disks is set up basically the exact same as your example (Sys. Reserved; Drive; Unallocated Space. Only difference is itās 3TB) but both my āExtend Volumeā and āNew Simple Volumeā buttons are greyed out.
Now Iām missing out on ~750 GB of space, and itās a little frustrating.
Running Win7 64 bit, hardware inside is top-of-the-line (Or damn close), all updates have been done, no viruses / spyware. (Hardly any -ware at all, itās a fresh system.)
re.) the warning in Win7 : āThe operation you selected will convert the basic disk into a dynamic disk. If you convert the disk to dynamic, you will not be able to start installed operating systems from any volume on the disk (except the current boot volume). Are you sure you want to continue? ā¦
If you are trying to recover space to reformat an entire drive as one partition and run into this problem, you might try thisā¦
In Disk Management, first
-Create a new Simple Volume in the Unallocated Space.
-Keep the new Volume and Delete the Old Volume .
ā Extend the new Volume into the Unallocated Space
Done! :~)
My d: drive is my hp recovery disk. update my recovery because my recovery is very old and some missing updates. but my d: drive is delete then i create new d: drive. then i will try to create recovery disk but system shows error ā a set of recovery disc has been created for this pc. only one set is allowed per pc. please help
My BIG question is āWhat happenās if I click Yes after the message: āThe operation you selected will convert the selected basic disk(s) to dynamic, you will not be able to start installed operating systems from any volume on the disk(s) (except the current boot volume). Are you sure you want to continue? Yes / Noā ???
Will I then Not be able to boot windows on my PC?
Note: All I want to do is add the 465GB of āUnallocated spaceā to a usable partician.
Thanks Mr. Leo i find my problem! i will remember you,, Bundle of Thanks!
Hey Leo im from Philippines.
my 1TB HDD has 3 main partitions (not including system reserved partitions)
C: is my windows (290 GB)
E: is my my movies/song etc. (512 GB)
i have Unallocated partition (110GB)
since unallocated partitions cannot be merged to NTFS partitions, i have used the unallocated paritition to create a new partition called F: which is now 110 GB.
while the merging process is about to complete, i get an error saying:
āNot enough unallocated space before and after the selected partition for the move/resize feature.
btw, im using EaseUS partition manager. can you help me with this?
Hi Leo,
Thanks for putting up this.
I have an IOMEGA 500GB external drive, only around 1 year old and not frequently used.
Recently I did some back up of my files. When thats done, I kept the drive. When I plugged in again, the drive is no longer accessible from My Computer. I am using Windows 8 Desktop environment.
I did a google search and found that I have to select a drive letter. However, I left click, right click, still dun have the option to do that.
In my Safely Remove Hardware icon, I can see āEject IOMEGA HDDā. That means my drive not spoilt right?
I have since followed your advice on creating a new Simple volume, but i did not format the drive as it contains important data. Now that I have the J: back, i cannot access anything inside it unless i format it and lose all my data? What can i do to get back the data?
Thanks a million.!
thanks alot you help me very much . i hope i can solve anather my problem to you.
Hi Leo,
I am using sony laptop. I have windows 7 and windows server 2008 r2 installed in dual boot. so i now I have 2 os partitions and a recovery partition. Now I want to shrink server 2008 partition(98gb), bcz i need a small partition to work on server. Till shrinking the volume, it is working fine but when I tried to create new volume on unallowcated space, its showing an error says āThe operation you selected will convert the selected basic disk(s) to dynamic, you will not be able to start installed operating systems from any volume on the disk(s) (except the current boot volume). Are you sure you want to continue? Yes / Noā ???
so i dont want to loose the other operating system and yet want to create a partition.
Could you please help me with solving the errorā¦..thank you in advance.
Thanks! Worked a treat. I replaced a failed 32GB SSD with a 250GB SSD but system was only showing 30GB after installing system image. Checked in Disk Management and the rest was showing as unallocated space, so did the āextend C partitionā thing and it did the trick ā now have the full volume available in C. Thanks very much for this very helpful article.
when I create new volume can I recover previous all data.I want not format local disk by creating new volume. how to do this please sent massages on my {email address removed}
Best explanation yet, because I was afraid to click āFinishā until I was sure it wasnāt going to do something unexpected. But, I want to do a Move, so I have to expand on one side, then shrink on the other.
I was hoping to see a few words about āShrinkā ā or a link to that information ā did I miss it, or maybe it could be added? Iāll do a search of Leoās entire site, just to make sure.
I have installed win 7 and format for another drive it show unallocated space for 64GB, i have create or format the disk the below message is cameā the operation is not enough space to completedā my hard disk 64GB is unused what i can do.
I have using windows 7 and I have an unallocated drive I want to extend that drive to D drive how can I????
i am trying as saying as above
but after finishing it itās Sayās there is no enough memory.
but i give that how much have
When I am creating new partition with unallocated space below error message is prompting. so kindly help me out from this error
āError already have the maximum number of partitions, unable to recover unallocated disk spaceā
other than complete system format solution
Actually that seems self explanatory: the disk already has the maximum number of partitions.
I have something related, but the volume is shown as Free space in green label I can only male a new partition on it, (i cannot convert it into unallocated space and use it for another partition, i have a 1TB Harddrive having about five partitions incl.this one ) please help me retribe my space.
Your advice on extending a volume C into a following unallocated partition is very clear. My set up is that the unallocated partition is BEFORE (to the left of) the C partition. (I had just XP but made a Win 7 dual boot and this is how the disk was arranged ā D for XP, Unallocated, then C). How should I extend in this case? (Does extend = merge?)
Thanks for advice,
Youāll likely need to use a different tool ā probably something like Easeus Partition Manager. Thatāll let you move things around so that theyāre lined up appropriately for combining. Windows built-in manager is somewhat limited.
hai leo,
I just followed your instructions regarding āhow to make use of the unallocated spaceā but after I am done with the procedure starting from right clicking the unallocated space and then create new volume etcā¦ at last a message appears which says
ā this is not possible because some of your disks are basic and doing so will convert them into dynamicā
Hey Leoā¦..very useful suggestions up thereā¦..i have a 16 gb sandisk pendrive which has 14.6 gb unallocated space.
BUT when i the option to create a new simple volume on it is whited outā¦..please help
Also,i have four partitions on my main hdd..
Hi,im jst proud of u for helping us fo solving probles on IT issues.keep it up
My options are grayed out. I have a 5tb drive that windows automatically split into 2tb and a 2.6 tb partions. I installed a fresh copy of windows 7 onto the first partition, and now when i am all done and booted up, the unallocated space has grayed out options. No idea how to make it into a normal data partition. Please help!
I have a 3 TB drive which is partitioned into a 2 TB and a 1 TB spaces. The 2 TB partition is a āhealthyā partition but the 1 TB partition does NOT give me the option to create a ānew simple volumeā. Create a new simple volume is faded out. What did I do wrong??
I had partitioned my 500 GB hard drive into 3 Partitions:
i) Windows XP with SP3 ā because many of my existing software apps do not run on Vista, especially Windows 7 and above.
ii) Windows Vista ā just in case one of the OSs fails to boot, and there is need to recover important documents in that Drive by booting up another OS (in the other Drive).
iii) Windows 7 ā for certain websites that need IE8 and above.
Firstly, I upgraded (changed) my Intel Motherboard ā the new Desktop Board supports mainly SATA Drives (unless IDE to SATA Converter is added).
Secondly, my Windows XP SP3 developed boot-up problems, but it could not be repaired with the existing Windows XP CD which is not slip-streamed with SP3 ā nor does it have SATA Drivers.
Thirdly, I could still access the Documents on this Drive (XP OS) through the other Drives. Suddenly the Master File Table and its āmirrorā (MFT) became corrupt ā it could not be repaired by CHKDSK.
So, I reformatted that drive. And also deleted it ā it is now being shown as āfree spaceā.
I tried to format that Partition with New Simple Volume Wizard and followed all the Steps onscreen but finally an Error window popped up with the following Error:
āThere is not enough space available on the disk(s) to complete this operationā .
Then I tried to install Windows 8 in that Partition (Drive) but it failed to format the said Partition.
Kindly suggest a solution, asap. Thanks in advance!
Hi dear Leo,some of my drives on Win10 has been unloacated and thayāve got about 500Gs data.Now how can I get my data whout format and recovery?
Best wishes
Sajad
Thank you SOOO much. Not only was this very simple to follow, it immediately gave me ābackā that unallocated space that I thought was lost. That unallocated space was due to following a YouTube video on how to āHow To Make A Partition on Windows 7ā. Problem isā¦.it depends on which version of Win7 you have! Bc my 64 bit, Professional would have created Dynamic partition. THANKS AGAIN!!
you just answered my question right away thank you so much
Iām using Windows 7 and have a 1 terabyte drive which I have partitioned in to C and D. D is strictly for data. Iāve just reformatted my C drive and made it smaller and this had left me with 50 GB of unallocated disk space which Iād like to add to my D drive to extend it. The instructions above for EXPANDING ADJACENT DRIVE doesnāt work in this case. When I right click on the D drive, EXTEND VOLUME is not highlighted as an option.
Iām sure there is a way to extend my D drive. Iām just wondering if there is a way to do it that does not involved installing software ā¦ or installing only a portable tool.
Would Acronis True Image bootable disk work for this?
Cheers
Hello again,
Solved the problem in about 30 seconds using AOMEI Disk Partition Assistant Standard Edition which is free. It does require installation, but itās a tiny file and doesnāt take up much space.
Here is a YouTube video link on how to use it: https://www.youtube.com/watch?v=95KwYbPcRDU
Most important part on video is 1:40 ā> 3:22
How many time it takes to unallocate 40 gb space
Using the Disk Manager or a program like EaseUS Partition Master, the process generally takes seconds.
Thanks for help. Now I know how to get rid of 80 G ā unallocated ā partition.
Best regards
Norbert
Great info because I used an HP tool that created a partition and didnāt know how to return to C: as every gb counted on 80 gb ssd.. Many thanks Don