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: Unallocated spaces at the beginning & end of the BOOT disk

20 Mar 2015   #11
gregrocker

 

Giga's can gag but Mega's can't byte.


My System SpecsSystem Spec
.
20 Mar 2015   #12
119baystate

WIN 7 32 bit
 
 

Quote   Quote: Originally Posted by 119baystate View Post
Quote   Quote: Originally Posted by 119baystate View Post
Quote   Quote: Originally Posted by AddRAM View Post
Did you delete the entire drive down to un allocated space before this new install ?
I (THINK) that I did. The new install just finished. Now there is no unallocated space. I will now repartition the drive & restore the old image & recheck.

CHECK MYSELF above: I will restore the old image & recheck. If OK then repartition.
At this juncture I have restored the OLD image & NO unallocated spaces exist. Now I will repartition the disk to make room for the FRESH INSTALL.

The disk has been repartitoned & NO unallocated spaces. The final step is NEXT, will report back.
OK, I did the FRESH INSTALL & the unallocated spaces reappeared. Why is that? I have another dual-boot system & those spaces do not exist. However, the difference there is the 2 OS's exist on different disks. This time they are on 2 partitions on the same drive.

Is this actually supposed to occur per response from SWI2? If so, why? If not, are they problematic?
My System SpecsSystem Spec
20 Mar 2015   #13
119baystate

WIN 7 32 bit
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Giga's can gag but Mega's can't byte.
SNIDE remarks like this are not helpful. You are cluttering the thread. Given yor credentials you post on your handle name you would have more to offer than the above.
My System SpecsSystem Spec
.

20 Mar 2015   #14
gregrocker

 

Jeez, I was only trying to be lighthearted and humorous.

Why so serious about a megabyte that you'd insult someone over it? It is as insignificant as a piece of dust.

Unsubscribed from thread and all future by OP.
My System SpecsSystem Spec
20 Mar 2015   #15
SIW2

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64
 
 

In Vista and newer, logical drives [ except the one nearest the start of the extended partition ], usually reserve one MiB for an extended boot record, rather than the 63 sectors (31.5 KiB) reserved by alignment based on a CHS geometry. If other partition managers are used then Vista and newer Disk Management may reserve different amounts of space for the EBRs.

Some partition managers will optimise alignment for you.

Download Free AOMEI Partition Assistant Standard - Magic Partition Manager Freeware
My System SpecsSystem Spec
20 Mar 2015   #16
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

SIW2 is definitely one of the forums experts on such matters.
So if I may ask a question.

SIW2 after following your advise and instructions will their be a lost or misused 1mb or more?
Because that seem to be 119baystate concern.

I ask this question because I'm not a expert like SIW2 and gregrocker and I have read post #22 to 27 here.

Partition question : Unallocated Space Before
My System SpecsSystem Spec
20 Mar 2015   #17
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

My System SpecsSystem Spec
20 Mar 2015   #18
119baystate

WIN 7 32 bit
 
 

Quote   Quote: Originally Posted by SIW2 View Post
In Vista and newer, logical drives [ except the one nearest the start of the extended partition ], usually reserve one MiB for an extended boot record, rather than the 63 sectors (31.5 KiB) reserved by alignment based on a CHS geometry. If other partition managers are used then Vista and newer Disk Management may reserve different amounts of space for the EBRs.

Some partition managers will optimise alignment for you.

Download Free AOMEI Partition Assistant Standard - Magic Partition Manager Freeware
I did some reading on filesystem organization & the MBR along with some partitioning. I will attempt to parse what you are saying into something I understand. Everything I am saying from this point forward are pretty much questions from me.

First off, I thought anything to do with the boot record resides in "SHADOW" partition of which is conservatively oversized by design. So I don't quite understand why additional unallocated space is necessary for that.

The additional unallocated spaces are not an artifact of a DUAL BOOT system, but more of an artifact of how I told PARTITION WIZARD to split the partitions of that single drive? If so that might explain that I do not have these unallocated spaces on my other DUAL BOOT system where the 2 OSes reside on different drives?

I gather there are differences in block or cluster sizes between file systems of which I guess mine is NTFS. If I choose a partition size that is an EXACT integer multiple of that cluster size then these unallocated spaces are not needed?

Am I getting the picture? If you have a good tutorial on the subject by all means clue me in.

Thanks
My System SpecsSystem Spec
21 Mar 2015   #19
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Quote   Quote: Originally Posted by 119baystate View Post

First off, I thought anything to do with the boot record resides in "SHADOW" partition of which is conservatively oversized by design. So I don't quite understand why additional unallocated space is necessary for that.
These "shadow" partitions have nothing to do with unallocated space. Unallocated space is space on a hard drive that has not been partitioned or formatted.
Windows can (but not always) create a System Reserved partition, usually 100 to 128MB, that is used to contain system files and the boot manager.
In addition, UEFI systems can (but not always) have a SYSTEM partition, usually 100MB, that contains system files and boot managers.
And all file systems must create a File Table, usually in the first few sectors of a hard drive, that keeps track of the whole thing. Apple has it's own file system, Linux it's own, etc.

Quote   Quote: Originally Posted by 119baystate View Post
The additional unallocated spaces are not an artifact of a DUAL BOOT system, but more of an artifact of how I told PARTITION WIZARD to split the partitions of that single drive? If so that might explain that I do not have these unallocated spaces on my other DUAL BOOT system where the 2 OSes reside on different drives?
Partition Wizard will not create these unallocated spaces because Linux does not have a use for them.
My System SpecsSystem Spec
21 Mar 2015   #20
119baystate

WIN 7 32 bit
 
 

Quote   Quote: Originally Posted by TVeblen View Post
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?
My System SpecsSystem Spec
Reply

 Unallocated spaces at the beginning & end of the BOOT disk




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
MOve files to beginning of disk ???
Hello, i want too shrink my 1TB hard Drive but can't because of files at the end of disk :( Does anyone know a degraggeror program that will do this??? Thanks, any help would be grateful :o
Performance & Maintenance
Want to move Boot partition to the beginning of the drive
I had a disaster with my Laptop and to cut a long story short, I installed windows 7 Home Premium 64 bit. There was a recovery partition (D drive) which I forgot about. This was at the beginning of the drive. I have deleted this partition and I now have the following: 219.96 GB 78.13 GB ...
General Discussion
I have no OS at all and cannot find unallocated disk
PLEASE HELP!! My laptop has no Operating System in it at all!! I have all the disk that came with my Dell Inspiron 1440, but when I follow the instructions for installation, I get here |Name.........................................|Total Size..... |Free Space.......| Type............
Installation & Setup
Merging two unallocated spaces
How to merge the two unallocated spaces, for which inbetwee I have a C:Drive. Please look at the pictures.I am using the mini tool partition wizard home.
General Discussion
Merging two unallocated spaces?
Hi, I hope I'm in the right section. This is what my current HDD looks like NTFS (C:) 242.4GB Unallocated 20MB Ex3 9.943GB Linux Swap 494.2MB Unallocated 14.06.GB
Hardware & Devices
Unallocated Disk Space
Before I installed Win 7, I had a C: drive of about 133 GB and a D: drive partition of the remainder of my 160 GB HD. I removed the partition so I would just have only the C: drive before I installed Win 7. I no longer have the D: drive showing but it appears I am not regaining the space from the...
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 07:03.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App