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Windows 7: Very odd partition

09 Jan 2015   #1
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 
Very odd partition

Some of you will know I have had a great deal of trouble recently getting anything from the EBay seller of an Asus ROG G750JM laptop and to cut a very long story short the optional Windows 7 he installed on the machine I bought I was given the activation code yet no sticker. I have asked Microsoft re the sticker and they say it has to have one but still the seller insists he doesn't have to provide one.

So I have left it because it has ben nearly two weeks trying to get some satisfaction and if Microsoft want to query my install I have it on record what has transpired.
Now tonight I was going to set up a Macrium image of the machine as it is right now but I have discovered a partition on the main hard drive that appears to have nothing in it - se pic.
Does anyone have any idea what this could be and if so why it is there?




Attached Thumbnails
Very odd partition-mini-tool-snip.png  
My System SpecsSystem Spec
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09 Jan 2015   #2
jumanji

Windows 7 Home Premium 32 bit
 
 

To me it seems that the drive was formatted as a GPT drive. GPT drives will have the 128MB MSR (Microsoft System Reserved) Partition.

Please check the drive listing below the Partition Wizard Disk MAP. You will know it for certain. :)

Very odd partition-09-01-2015-16-06-37.jpg


My System SpecsSystem Spec
09 Jan 2015   #3
jumanji

Windows 7 Home Premium 32 bit
 
 

In the case of ICit2 disk 1 is the GPT drive - System drive. His lappy is most probably UEFI since he downgraded from Windows 8 to Windows 7 if I remember correct.

Disk 2 is MBR - his Seagate Backup Plus external drive.
My System SpecsSystem Spec
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09 Jan 2015   #4
gregrocker
Microsoft MVP

 

Please post a screenshot of Disk Management - Post a Screen Capture Image
to compare.

Please also include all of the drive listings box from PW and not just the drive map.

Jumanji you'd better take a look at what he posted in https://www.sevenforums.com/2978914-post426.html because there he has two UEFI installs to GPT disks which are somehow marked Active. We need to see a Disk Mgmt screenshot to compare because that would either have to be misreported having an Active flag on GPT partitions or it is seriously defective.
My System SpecsSystem Spec
09 Jan 2015   #5
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

As requested but I do not see the third partition that was in the Partition Wizard shot. Both are Samsungs original is an 850 and the one I installed on this morning an EVO.


Attached Thumbnails
Very odd partition-install2.png  
My System SpecsSystem Spec
09 Jan 2015   #6
jumanji

Windows 7 Home Premium 32 bit
 
 

Yep, the full screen PW screenshot with Disk Map as well as the Disk list should clear the air.

I have only referred to what ICit2 posted in this thread - his first post - and have answered his question.

The screenshot he posted above is different showing two GPT drives of 200+GB ( His first screenshot in this thread showed one GPT drive 200+GB and another external drive 400+GB drive)

And ICit2, Windows Disk Management will not show up the 128MB MSR partitions on a GPT drive lest users meddle with it.
My System SpecsSystem Spec
09 Jan 2015   #7
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Ok here is the shot requested


Attached Thumbnails
Very odd partition-install.png  
My System SpecsSystem Spec
09 Jan 2015   #8
jumanji

Windows 7 Home Premium 32 bit
 
 

Nope Icit2 :), please post the full screenshot of the Partition Wizard that appears in your first post- the one with 238.47 GB drive and 465.76 GB drive.

Anyway answers to your question:

1. The 128MB partition is the MSR partition in GPT drive.

2. The MSR is used on UEFI/GPT systems, to support software components that formerly used hidden sectors.The MSR partition must:
Have 128 MB of hard drive space.
Be located before the Windows operating-system partitions.
For more information about MSR partitions, see Windows and GPT FAQ

Extract:
The Microsoft Reserved Partition (MSR) reserves space on each disk drive for subsequent use by operating system software. GPT disks do not allow hidden sectors. Software components that formerly used hidden sectors now allocate portions of the MSR for component-specific partitions. For example, converting a basic disk to a dynamic disk causes the MSR on that disk to be reduced in size and a newly created partition holds the dynamic disk database. The MSR has the Partition GUID:
DEFINE_GUID (PARTITION_MSFT_RESERVED_GUID, 0xE3C9E316L, 0x0B5C, 0x4DB8, 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
What disks require an MSR?

Every GPT disk must contain an MSR. The order of partitions on the disk should be ESP (if any), OEM (if any) and MSR followed by primary data partition(s). It is particularly important that the MSR be created before other primary data partitions.

3. You won't see the MSR partition in Window Disk Management.

( I am not into the other thread where you are discussing the seller's install and your install. That is Greg's domain and I have not been looking into it.) )
My System SpecsSystem Spec
09 Jan 2015   #9
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Ok I have just hooked up the back up drive again this is what is on it.

I have just watched Gregs link to Legacy v EUFI and have a very simplistic idea about it and what I thought was something wrong really isn't.

Now when I got the machine I installed a new OEM 7 Home on a new SSD but when I tried to load drivers for 7 Asus support said I had to update the BIOS to do that hence me sending it back to Sydney for them to do the install because of the risks one hears of rehashing the BIOS, and if that happened then I wanted them to be up for the ante but they didn't touch it and I am still left with that message to update it and am very loathe to do it as I don't want to muck this machine up. I do have a dual BIOS Gigabyte board in my older Sandy Bridge and so have some safe guard to trashing the BIOS but with this machine there is only one chance as far as I can see.


Attached Thumbnails
Very odd partition-install3.png  
My System SpecsSystem Spec
09 Jan 2015   #10
jumanji

Windows 7 Home Premium 32 bit
 
 

Added to my previous post:

( I am not into the other thread/topic where you are discussing the seller's install and your install or anything related to it. That is Greg's domain. and I have not been looking into it.)
My System SpecsSystem Spec
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 Very odd partition




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