Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Can't create another partition

07 Jun 2012   #1

Windows 7 Home Premium x64
Can't create another partition

Hi everyone,

I can't deal with a specific problem. I bought a laptop and it was partitioned in a bad way. Now there was a pre-created partition D:. I deleted this partition and wanted to create a new partition D: with all the unallocated space. However, whenever I try to create the partition, I get the error message you can see in the attached picture. I read about this and I know about partition limitations. But as far as I understand, I have only one primary partition, which is C:. Even more, there used to exist a pre-installed partition D, it was only after I deleted it that I can't recreate one.
So I guess my question is: What's wrong, why can't I create the partition and what can I do to create it? I know there are some programs I could use, but I would want to stay away from those if there is an easy way to deal with the problem through windows. Also I read something about changing the unallocated space into dynamic space by right-clicking it and selecting the corresponding option, but when I right-click the unallocated space, there is no possibility for that.

Another questions I had is what those two partitions without a letter are and whether it is safe to delete them.

I thank you all for your answers in advance.

Attached Thumbnails
Can't create another partition-error.jpg  
My System SpecsSystem Spec
07 Jun 2012   #2

Win7 Ultimate X64

You can only have a maximum of four standard partitions on one drive to add more you need to change the type of partition you are trying to make but i would strongly advise you not to do that as it can create all sorts of problems

Instead to recover the space on the drive to make it useable i would extend one of the existing four partitions to consume the spare space

Sometimes manufacturers will put a partition on the drive with recovery options on it in case of problems, this is often instead of supplying windows disks so it may be wise to procede with caution if you are planning to remove any more partitions and do not have any other recovery methods ie win disk or image backups etc
My System SpecsSystem Spec
07 Jun 2012   #3

Windows 7 Home Premium x64

But there are only 3 partitions, aren't there? And only for one it says that it is a primary partition. Have you seen the screenshot? And even if you see it in another way: Can I safely delete one of the two partitions that do not have any drive letter?
My System SpecsSystem Spec

07 Jun 2012   #4

Windows 7 Home Premium x64

Ok, it worked now. I deleted the green part you can see in the screenshot labeled "free space" and was able to create another partition. Can somebody maybe explain what just happened?
My System SpecsSystem Spec
07 Jun 2012   #5

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

Most likely that green space was a logical partition within an extended partition at one time.

You have to completely delete it and get it back to "unallocated space" status before you can make another primary partition. It isn't enough that you have "free space" as shown in your pic.
My System SpecsSystem Spec
07 Jun 2012   #6

Windows 7 Home Premium x64

I did that just now. Thanks for the info, solved the problem.
My System SpecsSystem Spec
07 Jun 2012   #7
Microsoft MVP

Windows 7 Ultimate X64 SP1

The 200MB NTFS partition is the System reserved and has the bootrec on it, don't delete it or your system won't boot. the other one, 14.75GB is for a factory recovery. You can delete it but you would lose the factory restore option then.
My System SpecsSystem Spec

 Can't create another partition

Thread Tools

Similar help and support threads
Thread Forum
Unable to create a new system partition or locate an existin partition
I am getting this error while installing windows 7 again! My earlier win 7 got corrupted and i am trying to reinstall it. I am using USB drive. I have tried re-inserting pen drive and diskpart method to set the location of the partition.but both solutions are useless! What can be the reason...
Installation & Setup
create dual boot partition from exisiting W7 partition on existing HDD
I would like to create a bootable partition from an existing Win 7 partition. I have two partitions bootable now. Both Win 7- one with dragon dictate and various software I am trying out (on a 1.5 TB drive) and the other is my regular boot partition on an SSD with the system reserved partition. ...
Installation & Setup
Setup was unable to create a new system partition - I can not create p
Hello guys,'ve looked for everything that google and not found my solution. Is giving the following error when trying to install windows 7 in HD: "setup was unable to create a new system partition or locate an existing system partition" I've tried to do some procedures, but also can not...
Installation & Setup
Missing Partition and Unallocated Space (Can't Create New Partition)
Hey there guys. Can you please help me solved this problem. sorry for my bad english. I'm using Compaq Presario CQ40-627TU My Laptop Spec Intel Dual Core Processor T4400 (2.2GHz, 80Mhz FSB,1 MB L2 Cache) - 2048MB 800MHz DDR2 Memory - 320GB 7200rpm Hard Disk Drive
General Discussion
Setup unable to create a new partition or locate an existing partition
I bought a fairly new eMachines E528-2325 from a friend. before buying he decided to use DBAN 2.2.6 to wipe Windows 7 and install Ubuntu 11.04, after buying i requested him to reinstall Windows 7 using usb, so he again used DBAN to wipe the computer. Upon trying to install windows he got the error...
Installation & Setup

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 22:14.
Twitter Facebook Google+