Windows 7: Unable to extend a disk drive

Kumaranil1918 · 29 Mar 2012

I had 19.53gb of S drive wich i formatted and deleted.Now i have 19.53gb of unallocated free space and i want to shrink it into 2 halves and extend my C drive with 1 half and exted my A drive with another half.I'm able to extend my C drive but i'm unable to extend my A drive.I don know what is the reason.Pls help me.I've uploaded the screenshot for your reference.

1Bowtie · 29 Mar 2012

First of all the A:/ is reserved for a floppy drive never use that letter for a hdd, second in disk mgmt you can only extend to the right. There are other free 3 rd party programs such as Partition Wizard that will allow you to extend left. Hope this helps.

Kumaranil1918 · 30 Mar 2012

Quote: Originally Posted by 1Bowtie

First of all the A:/ is reserved for a floppy drive never use that letter for a hdd, second in disk mgmt you can only extend to the right. There are other free 3 rd party programs such as Partition Wizard that will allow you to extend left. Hope this helps.

Tanx for ur help.I wil try Partition Wizard and tel u d result later...

Kumaranil1918 · 31 Mar 2012

When i created S drive partition i used 20gb but only 19.53gb is showing to me i dont know where the remaining 0.47gb went.When i try to extend my C drive again 20gb is shown but after selecting again only 19.53gb is added to c drive.Y is 20gb doent get added completely .I've uploaded a screenshot for ur reference.

1Bowtie · 31 Mar 2012

It's because hdd manufacturer's count a gb as a 1000 mb's but in reality it is 1024 mb's so you lose alittle to overhead. Since you are extending C:/ to the unallocated space of 19.53 gb you are on the right track.

Kumaranil1918 · 31 Mar 2012

Quote: Originally Posted by 1Bowtie

It's because hdd manufacturer's count a gb as a 1000 mb's but in reality it is 1024 mb's so you lose alittle to overhead. Since you are extending C:/ to the unallocated space of 19.53 gb you are on the right track.

Tanx.. But it was an example to take screenshot.. I actually want to divide 19.53gb into 2halves and extend C: with 1half and A: drive with the other half.It is ok rite?

ignatzatsonic · 31 Mar 2012

You should be able to use Windows Disk Management to extend C half way into the unallocated space.

But you will probably have to use Partition Wizard to add the other half to A, because the unallocated space is to the left of A, not to the right.

Since you have to use Partition Wizard, you may as well use it for the entire operation and forget about Disk Management.

whs · 31 Mar 2012

A word of warning: Before you use partition Wizard, make sure you make images of the partitions you manipulate. It is easy to make a mistake. I once lost a whole drive with 4 partitions (my mistake) - but I had my images. Else Partition Wizard is an excellent program.

Kumaranil1918 · 31 Mar 2012

Quote: Originally Posted by whs

A word of warning: Before you use partition Wizard, make sure you make images of the partitions you manipulate. It is easy to make a mistake. I once lost a whole drive with 4 partitions (my mistake) - but I had my images. Else Partition Wizard is an excellent program.

Tanx 4 ur warning but i completed my extension using EASEUS partition wizard in boot.

bassfisher6522 · 31 Mar 2012

Quote: Originally Posted by Kumaranil1918

When i created S drive partition i used 20gb but only 19.53gb is showing to me i dont know where the remaining 0.47gb went.When i try to extend my C drive again 20gb is shown but after selecting again only 19.53gb is added to c drive.Y is 20gb doent get added completely .I've uploaded a screenshot for ur reference.

The difference is here in your screen shot...it's the conversion. 20GB converted to MB = 20480mb.

Windows 7: Unable to extend a disk drive

Unable to extend a disk drive problems?