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Windows 7: Unable to boot as drive is inaccessable

30 Jun 2013   #11
SanityAU

Windows 7 64
 
 

Quote   Quote: Originally Posted by whs View Post
The problem seems to be simple. Your Disk0 (SSD) has no bootmgr. It is sitting either on Disk1 or Disk2. Leave those active and copy the bootmgr to C:

Bootmgr - Move to C:\ with EasyBCD

The set Disk0 as first boot device in the BIOS.
I disconnected the other harddrives, attempted to boot and sure enough "BOOTMGR not found". booted from cd and did a system repair and it's all good now.


Though the initial problem, why was it saying the disk was inaccessible?


My System SpecsSystem Spec
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30 Jun 2013   #12
bobafetthotmail

Win 7 Pro 64-bit 7601
 
 

When you power up the PC you start a chain of programs finding and loading each other until the last loads Windows 7.
BIOS (the motherboard's firmware) goes and loads boot programs from a drive's MBR, that will then point to other boot programs inside a partition that will finally load the Operating system proper (windows 7).

This compartimentalization allows the hardware to be independent from the operating system.
This is complex but allows many benefits. You can easily install another operating system like Linux if you like, or do a multi-boot machine with 2 or more different operating systems on the same hard drive.
In case malware rapes and nukes your Windows 7 installation you just need to reinstall it, but the hardware cannot be damaged by it thanks to this compatimentalization.
For smartphones/tablets/whatever running Android and iOS it's not like that, there the operating system runs directly the hardware without any compartimentalization. Thus bad/buggy software can damage or destroy the hardware.

In your case one/more of the programs of this chain was on the HDD and not on the SSD, so without it one of the booting programs could not find the drive where the next step would have been.
Glad you fixed it.
My System SpecsSystem Spec
30 Jun 2013   #13
SanityAU

Windows 7 64
 
 

Well I suppose that makes sense haha. It initially started happening spontaneously after a system lock-up. Thanks for all the help. + rep for all
My System SpecsSystem Spec
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 Unable to boot as drive is inaccessable




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