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Windows 7: System Improperly shut down, UNMOUNTABLE_DISK_VOLUME BSOD

23 Jan 2013   #21
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Without an active partition.. it doesn't know where to boot from. Because bootmgr is not on disk you see the error message.

Make PQSERVICE active instead of ACER. Now try to boot normally. Works? If not...same error? Does it boot win7, or do you see ACER recovery menu?


My System SpecsSystem Spec
.
23 Jan 2013   #22
E3245

Windows 7 Home Premium 64bit
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
Without an active partition.. it doesn't know where to boot from. Because bootmgr is not on disk you see the error message.

Make PQSERVICE active instead of ACER. Now try to boot normally. Works? If not...same error? Does it boot win7, or do you see ACER recovery menu?
From what I discovered. PQService Partition gives out an message saying Error! when booting, and the strange thing is the SYSTEM RESERVED partition gives out the "UNMOUNTABLE_BOOT_VOLUME" BSOD error after staring windows 7. So, the system has been booting from the SYSTEM RESERVED, where the error started.
My System SpecsSystem Spec
24 Jan 2013   #23
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by E3245 View Post
Quote   Quote: Originally Posted by Kaktussoft View Post
Without an active partition.. it doesn't know where to boot from. Because bootmgr is not on disk you see the error message.

Make PQSERVICE active instead of ACER. Now try to boot normally. Works? If not...same error? Does it boot win7, or do you see ACER recovery menu?
From what I discovered. PQService Partition gives out an message saying Error! when booting, and the strange thing is the SYSTEM RESERVED partition gives out the "UNMOUNTABLE_BOOT_VOLUME" BSOD error after staring windows 7. So, the system has been booting from the SYSTEM RESERVED, where the error started.
Did you check on which partition file /bootmgr is? Most likely only "system reserved" has it. Please confirm
My System SpecsSystem Spec
.

24 Jan 2013   #24
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

An unmountable boot volume error means that the operating system cannot boot from the hard drive either because the boot files are corrupted, the hard drive is faulty or there is a problem with the cable connecting the hard drive to the computer.

hard drive faulty.....: Can you explore ACER partition and see files?
cable problem: Very unlikely... you see partitions.

Make "system reserved" active. In win7 recovery environment->command prompt:
Code:
bcdedit
What do you see? Make camshot and post
My System SpecsSystem Spec
25 Jan 2013   #25
E3245

Windows 7 Home Premium 64bit
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
An unmountable boot volume error means that the operating system cannot boot from the hard drive either because the boot files are corrupted, the hard drive is faulty or there is a problem with the cable connecting the hard drive to the computer.

hard drive faulty.....: Can you explore ACER partition and see files?
cable problem: Very unlikely... you see partitions.

Make "system reserved" active. In win7 recovery environment->command prompt:
Code:
bcdedit
What do you see? Make camshot and post
I typed in bcdedit but it says:

Code:
Cannot open volume for direct access.


Bootsect, bootcfg, and chkdsk /f c: also returns as:

Code:
The device is not ready.
My System SpecsSystem Spec
25 Jan 2013   #26
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

So... diskpart
sel disk ... lists only 1 only 1 disk

sel dis 0
list part

doesn't show any partitions ...correct?

But partition wizard shows them... very strange


Even boot from "system reserved" does work... although it crashes when trying to mount C
It has run bootmgr.. so it's readable and there are files. Can you see a lot of files in partition wizard->explore partition on your ACER drive and system reserved?
My System SpecsSystem Spec
25 Jan 2013   #27
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

You have 4 partitions in total....isn't it?
system reserved. Real win7.... and 2 for recovery. Correct?
My System SpecsSystem Spec
25 Jan 2013   #28
E3245

Windows 7 Home Premium 64bit
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
So... diskpart
sel disk ... lists only 1 only 1 disk

sel dis 0
list part

doesn't show any partitions ...correct?

But partition wizard shows them... very strange


Even boot from "system reserved" does work... although it crashes when trying to mount C
It has run bootmgr.. so it's readable and there are files. Can you see a lot of files in partition wizard->explore partition on your ACER drive and system reserved?
Yeah, the files are still there.

Quote   Quote: Originally Posted by Kaktussoft View Post
You have 4 partitions in total....isn't it?
system reserved. Real win7.... and 2 for recovery. Correct?
Actually, 3 partitions. PQSERVICE, SYSTEM RESERVED, then the main partition.
My System SpecsSystem Spec
25 Jan 2013   #29
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Strange PW sees everyting. Win7 boot process partitially sees partitions. It sees system erserved boot sector and bootmgr. And most likely bootmenu.

In PW do a resize of ACER and "system reserved". First make "system reserved" ACTIVE if not already yet.
Make C somewhat smaller by dragging left (not the right) handle. So make some unused space on left. (For exmaple 1GB smaller)
Also make start point of "system reserved" different. Drag whole partition to the right so it gets another start point.
Then apply changes.

How to Move/Resize Partition with partition manager? Partition Wizard Move/Resize Partition Video Help.

So change the start position of partition....
My System SpecsSystem Spec
25 Jan 2013   #30
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Do you have an external disk with a lot of free space?
My System SpecsSystem Spec
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 System Improperly shut down, UNMOUNTABLE_DISK_VOLUME BSOD




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