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Windows 7: Cannot activate an extended partition

11 Jun 2010   #1
leomarini

windows 7
 
 
Cannot activate an extended partition

Hi all,

I have 1 HD, Windows 7 Ultimate edition
With Disk Mngmnt I was not able to use a partition (see attachment)

Disk ### Status Size Free Dyn Gpt
-------- ------------- ------- ------- --- ---
* Disk 0 Online 232 GB 66 GB
==========================================

These are the partitions I have:

DISKPART> list partition

Partition ### Type Size Offset
------------- ---------------- ------- -------
Partition 1 Recovery 1500 MB 1024 KB
Partition 2 Primary 80 GB 1501 MB
Partition 3 Primary 78 GB 81 GB
* Partition 0 Extended 73 GB 159 GB
Partition 4 Logical 7051 MB 225 GB
==========================================
DISKPART> list volume

Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 G DVD-ROM 0 B No Media
Volume 1 C root_C NTFS Partition 80 GB Healthy System
Volume 2 D win2003srv NTFS Partition 78 GB Healthy Pagefile
Volume 3 TOSHIBA SYS NTFS Partition 1500 MB Healthy Hidden
==========================================

Now, when I check details of partition 0:

DISKPART> detail partition

Partition 0
Type : 0F
Hidden: No
Active: No
Offset in Bytes: 171360386560

There is no volume associated with this partition.
================================
If I try to activate the partition

DISKPART> active

Virtual Disk Service error:
The specified partition is a not a primary or logical volume.
================================
Even if I try to delete the partition, I get the following message:

DISKPART> delete partition

Virtual Disk Service error:
The extended partition is not empty.
================================

Now the question is:
1. How can I use that space from that partition?

See attachment to get a better picture.

Regards,

Leo




Attached Thumbnails
Cannot activate an extended partition-disk_mngmnt..jpg  
My System SpecsSystem Spec
.
11 Jun 2010   #2
gregrocker

 

Not sure why you are trying to activate it. Doesn't your C: system partition startup correctly?

Strange that it would remain free space when no longer an extension of any Logical Partition. Once the associated Logical extended partition was deleted, the free space should have gone unallocated.

Try booting into free Partition Wizard bootable CD to rightclick on the Free Space to delete. Next try rightclick>Modify>Convert to Primary, which is the other way it is done if there were still a partition extending.

You can also try moving data off of an adjacent partition, deleting it then creating a logical partition there. Next try extending the new logical partition into the Free Space, then deleting the new extended partition, or converting it to Primary.
My System SpecsSystem Spec
11 Jun 2010   #3
karlsnooks

MS Windows 7 Ultimate SP1 64-bit
 
 

leomarini,
When you power on your computer,
are you presented with a menu giving you boot choices?
My System SpecsSystem Spec
.

11 Jun 2010   #4
SIW2

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64
 
 

Delete the logical drive.
My System SpecsSystem Spec
19 Jun 2010   #5
leomarini

windows 7
 
 

Quote   Quote: Originally Posted by karlsnooks View Post
leomarini,
When you power on your computer,
are you presented with a menu giving you boot choices?
I'm glad you mention it...
last year I created a partition for linux, thus when I was booting I was able to select to boot linux or windows. Now that I have Win 7, I no longer see this option while booting.

Any hints?

Regards
My System SpecsSystem Spec
19 Jun 2010   #6
zzz2496

Windows7 Ultimate 64bit
 
 

leomarini, I see that you've created 4 primary partitions. In MBR styled systems, you can only create 4 partitions maximum. If you want to create more, you need to create 1 extended partition in place of one of the primaries (so 3 primary partitions and one extended). In the extended partition, you can create logical partitions. That way you can have more than 4 partition. Another way is to use GPT style instead of MBR. GPT have no 4 partition limit, but you can't boot off a GPT disk if your computer uses BIOS, it needs UEFI to boot off GPT disks.

zzz2496
My System SpecsSystem Spec
19 Jun 2010   #7
gregrocker

 

Did you try deleting the Logical partition with Partition Wizard CD? There are other approaches if this fails which I gave you earlier.
My System SpecsSystem Spec
21 Jun 2010   #8
leomarini

windows 7
 
 
I was able to repartition my HD

Hi Greg

It worked...

Partition Wizard (free edition) was all that I needed... it did the job for me.

Thanks Greg


Cheers,


Leo
My System SpecsSystem Spec
22 Jun 2010   #9
gregrocker

 

Good work, Leo.
My System SpecsSystem Spec
Reply

 Cannot activate an extended partition




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