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Windows 7: boot selection failed because a required device is inaccessible

10 Jul 2014   #1
Ettegoom

windows 7 starter
 
 
boot selection failed because a required device is inaccessible

Ok, so my recovery partition disappeared, so as a last resort I followed these instructions - and changed my active partition to the second partition in my list... and now my laptop is utterly bricked.

I've tried downloading a windows 7 starter image and putting it on a USB and booting from that - but it won't - all that happens ever, is that I get this message:

Windows failed to start...to fix the problem:
1: insert your windows installation disc and restart your computer
2. choose your language settings and then click next
3. click repair your computer

If you do not have this disc contact your system administrator or computer manufacturer for assistance

Status 0xc000000f

Info: the boot selection failed because a required device is inaccessible.

Help!!! please?


My System SpecsSystem Spec
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10 Jul 2014   #2
matts6887

Windows 7 ultimate 64-bit
 
 

try the steps in the following link and see if they help ya any:

Troubleshooting Windows 7 Failure to Boot

Post back if this does not help and we can try and go from there.
My System SpecsSystem Spec
10 Jul 2014   #3
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

It sounds like your recovery partition was the active partition with the bootmgr. Dell makes setups like this.

If you set your C partition active and run startup/repair 3 times, you might be able to fix it.
My System SpecsSystem Spec
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11 Jul 2014   #4
Ettegoom

windows 7 starter
 
 

Thanks, unfortunately as I can't access anything on the computer because of changing the active partition, I couldn't use either of the approaches that you suggested.

In a last ditch effort, I found another program for making USB boot drives on the Windows 7 forum and after downloading about three different ISOs of windows 7, managed to find one that worked.

So I have a computer that isn't bricked now... for which I am incredibly thankful - and thanks for your help!
My System SpecsSystem Spec
29 Oct 2014   #5
Javier Reinoso

xp
 
 

In the boot.ini of the bootable usb, is possible are this:

multi(0)disk(0)cdrom(0)

How is a USB, change to:

multi(0)disk(0)rdisk(0)partition(1)

I not understand how this solution not is write in nothing site, and are many topics in forums about this error in bootable usb's...
My System SpecsSystem Spec
29 Oct 2014   #6
gregrocker

 

Quote   Quote: Originally Posted by Ettegoom View Post
Thanks, unfortunately as I can't access anything on the computer because of changing the active partition, I couldn't use either of the approaches that you suggested.
What would that have to do with following the steps specifically titled Troubleshooting Windows 7 Failure to Boot ?? Everything that can be done to start unbootable Win7 is there.

The Win7 installation media with which to do the booted repairs as well as any other boot disks needed are given in the first few steps . Of course you need another PC to burn them but that would be expected if you can't use the PC that's not working.
My System SpecsSystem Spec
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 boot selection failed because a required device is inaccessible




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