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: Partition question : Unallocated Space Before

21 Mar 2015   #31

WIN 7 32 bit

Quote: Originally Posted by 119baystate
Quote: Originally Posted by TVeblen
Partition Wizard will not create these unallocated spaces because Linux does not have a use for them.

Wait a minute, are you saying that WINDOWS created the unallocated spaces in an autonomous operation subsequent the PARTITION WIZARD splitting the drive into separate partitions?

TVeblen got me motivated to run another test to see if this is WINDOWS or PARTITION WIZARD creating these unallocated spaces. Most of the conversation has pointed towards WINDOWS, but I did the following:

1) booted from a MACRIUM rescue disk which I believe does not care what operating system it is attempting to recover;

2) with a USB flash drive with PARTITION WIZARD installed I deleted the boot disk;

3) the size of the disk with no partitions according to PARTITION WIZARD is 238417.78 MBYTES which is 249,894,304,481.25 ....... bytes;

4) I then created 1 single primary partition on that very disk;

5) the size of that partition according to PARTITION WIZARD is 238416 MBYTES which is 249,892,438,016 .......... bytes;

NOTE the difference in size. The first is not an integer multiple of 512 bytes which if I am correct is a block size for NTFS? The 2nd size is an integer multiple. The residual 1.78 Mb. What did PARTITION WIZARD do with that residual space?

Keep in mind I am not booted into WINDOWS unless the MACRIUM rescue disk is based off a WINDOWS OS; moreover, I am creating a single primary partition. PARTITION WIZARD created 2 unallocated spaces. The 1 preceding the primary partition is 1.00Mb & the 1 following is 0.78Mb. The 1Mb space is an integer multiples of 512 bytes while the 2nd one is not.

So I am more asking a question than making a statement. This does not appear to be a WINDOWS artifact? The 1Mb preceding the primary partition is what, part of an extended boot record? The 0.78 Mb space is simply left over & no system whether WINDOWS, LINUX, APPLE, or UNIX can use since it is less than a block size?

I also did the same experiment by creating a single logical partition & the results were the same. Try it yourself. It is a quick test & you can finish in 5 minutes depending how fast your system will boot off a CD.

My System SpecsSystem Spec

 Partition question : Unallocated Space Before

Thread Tools

Similar help and support threads
Thread Forum
Shrinking my 7 partition, where do I want the unallocated space to be?
My 7 install to my SSD didn't go exactly as I'd like. The OS is on a huge partition I want to shrink it using Partition Wizard. I see from reading about it, you can either have the unallocated, free space in front of or behind the shrunken partition. The next partition behind the 7 one, is my...
General Discussion
Unallocated disk space error, Can not partition volume space
hello, I recently formated my desktop, I have everything saved on the (F) partition, and i formatted the primary partition (C) which leaves me with huge chunk of Unallocated space that is unable to use. Everytime i try to create a new partition, it says that space is not enough ( i even tried...
Performance & Maintenance
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
Create partition from unallocated space
I have 500 GB harddisc on my laptop with three partitions. I wanted to split the 400gb into 300 + 100 GB. So, I went to disc management and shurnk the volume to 300GB. I saw 100GB unallocated space. But, when I try to create a new partition with that unallocate space, I get a message that 'media...
Hardware & Devices
Partition help - unallocated space becomes a challenge to use
I want to partition, but after shrinking my drive c the unallocated space becomes a challenge to use. any ideas?
General Discussion

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 07:11.
Twitter Facebook Google+