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Windows 7: Logical partitions disappear upon reboot

14 Mar 2013   #1

Windows 7 64 bit
Logical partitions disappear upon reboot


Everytime I reboot my machine my logical partitions of the extended drive disappear. They re-appear only
when I go to Computer management -> Disk Management and then do refresh drives.

It is very frustrating as I have to do this for every reboot.


My System SpecsSystem Spec
15 Mar 2013   #2

Windows 7 Home Premium 32 bit

Hi pavangm,

Welcome to SevenForums.

Just try this. Change the drive letters of your logical drives to something higher in the order say R,S,T,U,V etc. - something that hadn't been used before by any device. Reboot and see whether these stick.
My System SpecsSystem Spec
27 Mar 2013   #3

Windows 7 64 bit

It did not help.

I still need to refresh in disk management for drives to appear.
My System SpecsSystem Spec

27 Mar 2013   #4

Windows 7 Ultimate x64 SP1

Is there a reason you have to use logical partitions? IN the rare event I partition a drive to more than one partition, I set them each as primary. Might be worth a shot.
My System SpecsSystem Spec
27 Mar 2013   #5

Windows 7 64 bit

I have one (C drive) as my primary parition. Then, the extended drive which is divided into 4 more partitions. But, I dont understand what is the problem with having extended drive. I have similar partition schemes in my other Windows 7 machines and it works fine. I had even deleted my extended drive, formatted and even reinstalled the Operating system.
But, the problem still persists.
My System SpecsSystem Spec
28 Mar 2013   #6

Windows 7 Home Premium 32 bit

Hi pavangm,

I would speculate that somehow the Windows 7 disk management tool fails to write the permanent partition information to the MBR causing the partitions to be lost after the restart.

If you still want to have logical drives, I would suggest that you try a third party partitioning tool like MiniTools Partition wizard to delete the extended partition and then create your logical drives with it. See whether the logical drives stick.

Best Free Partition Manager Freeware and free partition magic for Windows 7, Windows 8, Windows Vista and Windows XP 32 bit & 64 bit. MiniTool Free Partition Manager Software Home Edition.
My System SpecsSystem Spec
29 Mar 2013   #7


Try deleting those partitions, restarting and then re-creating them. Make sure you back up your data before doing this.
My System SpecsSystem Spec

 Logical partitions disappear upon reboot

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