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Windows 7: Partitioning, Windows 7 will not show 2nd partition in My Computer

24 Oct 2011   #11
DeaconFrost

Windows 7 Ultimate x64 SP1
 
 

The drive doesn't have a letter assigned to it, so it isn't usable or even able to be displayed in other areas of Windows.


My System SpecsSystem Spec
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24 Oct 2011   #12
Techmenot

Windows 7 Home Premium 64bit
 
 

seavixen32,

Yes, I download the EaseUS Partition Manager straight to my C:\ Windows 7 and I shrink the C:\ and made 2 more partitions with the rest and that when only one partition shows up in My Computer.
I might have to do what you suggested, I ws hoping that I won't have to start all over again since I already have lots of files in the other 2 partitions. Only the one that is hidden has nothing in it.


Zomby88,

Yes I did that before and I did it again following your advice and it is still hidden.
I just don't understand why windows 7 keeps it hidden. Is it something to do with being a 64bit?

Thank you both for your input, much appreciated.
My System SpecsSystem Spec
24 Oct 2011   #13
Techmenot

Windows 7 Home Premium 64bit
 
 

DeaconFrost,

I did assign a letter to it when it was created and I assigned (G), the drive letter is there when I unhide it.
Also, there is another hidden partition formatted in FAT and when I unhide both partitions the drive letter of the 122 GB drive was changde to I and the FAT partition had the G.
My System SpecsSystem Spec
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24 Oct 2011   #14
gregrocker

 

Assign it a letter in Disk Mgmt and it will be seen.

If this partition is where you want to install the Dual Boot, just boot the installer and install there and it will assign a drive letter.
My System SpecsSystem Spec
24 Oct 2011   #15
Techmenot

Windows 7 Home Premium 64bit
 
 

gregrocker,

That was the first thing I thought of doing, but I can't assign a drive letter(again) because all options when I rightclick on the partition in Disk Management is grayed out except for the "Delete Volume" and "Help".

While via EaseUS, I also couldn't assign any drive letter because that option is not available. For me to do that I would need to delete the partition first(I have done that a few times already). The assigned drive letter is there if I unhide the drive but at reboot Windows hides it again.

What I have noticed is that if I make it into a logical drive it will show up in My Computer, I tried it just then to check if it makes a difference(and it did). So it seems it has something to do with it being a primary partition. Surely Windows 7 64bit does not have a limit of 2 primary partitions in one physical drive right?

Yes, this is the partition where I want to install the dual boot, I haven't tried just booting the installer because I thought I might encounter more problems so I wanted to fix this issue first.

Again, thank you all for all your input.
My System SpecsSystem Spec
24 Oct 2011   #16
seavixen32

Windows 7 Ultimate SP1 64-Bit
 
 

You can have a maximum of four primary partitions on a hard drive.

If you still need more partitions then you can create logical partitions within the fourth primary partition.

I still think if you delete the two partitions without a drive letter and the logical partion you'll then be able to create a new partition for your dual-boot system.

I think your problems stem from the fact you have a logical partition between two partitions that haven't been allocated a drive letter.

Currently, your logical partition is part of your first primary partition that doesn't have a drive letter and I'm sure that's what's confusing Windows.

If you delete those three partitions and start again, I'm sure that'll solve the issue.
My System SpecsSystem Spec
24 Oct 2011   #17
gregrocker

 

Agree. Use Disk Management. It will offer Logical for the fourth partition. Accept it.
My System SpecsSystem Spec
25 Oct 2011   #18
Techmenot

Windows 7 Home Premium 64bit
 
 

"I still think if you delete the two partitions without a drive letter and the logical partion you'll then be able to create a new partition for your dual-boot system."


I deleted the 2 partitions which didn't have a drive letter and also deleted the logical partition, created and formatted 2 new partitions but the 122 GB next to the Windows 7 will still not show up while the 1.2 Tb shows up.

Now I lost my recovery partition, but didn't matter if this issue has a solution. I haven't installed another OS to any of the 2 drives since with my searching I've also read those missing OS.
My System SpecsSystem Spec
25 Oct 2011   #19
Techmenot

Windows 7 Home Premium 64bit
 
 

>>>"Use Disk Management. It will offer Logical for the fourth partition. Accept it. ."<<<


There are only 3 partitions in this PC:

1. C:\ where Windows 7 resides
2. the problematic partition (is hidden)
3. the other primary partition (is okay)

There was a 4th hidden partition that I did not create the "Recovery" partition which is now also been deleted.
My System SpecsSystem Spec
25 Oct 2011   #20
jimbo45

Linux CENTOS 7 / various Windows OS'es and servers
 
 

Hi there
just right mouse click on these unlabelled partitions and choose change (or assign) drive letter

Hey presto the disk will mount and off you go using the assigned letter (say D or E or whatever)

I sometimes get this problem with external USB drives -- there's no letter assigned so windows explorer doesn't see them.


As soon as you assign a letter they work normally.


Note that this could also be a GPT disk drive in which case other methods need to be used -- I don't have experience of using GPT drives directly so I'll hand over to someone more experienced.

However I do know that a GPT drive also removes the restriction of 4 partitions per drive (max) and does away with the need for things like Logical Partitions which are always a pain.

With larger multi-TB drives appearing the 4 partition restriction was becoming a real pain so GPT removes this.

However I assume that all these newer larger 2 TB and above drives will use GBT rather than the MBR system on W7.

http://msdn.microsoft.com/en-us/wind...dware/gg463524


Cheers
jimbo
My System SpecsSystem Spec
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 Partitioning, Windows 7 will not show 2nd partition in My Computer




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