[Last Call] Learn about multicloud storage options and how to improve your company's cloud strategy. Register Now

x
?
Solved

Windows V7 Pro will not boor. OS now indicated as being drive d:

Posted on 2014-01-13
16
Medium Priority
?
224 Views
Last Modified: 2014-01-18
We have a windows v7 Pro 64 bit workstation that suddenly will not boot. System repair does not fix it, but I noticed that the windows drive is now know as drive D: and the c drive is called system reserved.

I presume the OS config has got confused along the way, but what do I need to do to recover the config for the OS drive to be known as c: again.

I tried an earlier system restore point, but that did not help.

Any advice would be welcomed.
0
Comment
Question by:nigelbeatson
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 9
  • 4
  • 3
16 Comments
 
LVL 3

Expert Comment

by:Stef95
ID: 39776662
So what the issue sounds like is that bootmgr is missing, this has happened to me in disk management the active partition has been set to D: the way i fixed was a reinstall however check the link :

http://pcsupport.about.com/od/findbyerrormessage/a/bootmgr-is-missing.htm
0
 
LVL 3

Expert Comment

by:Stef95
ID: 39776664
Also, have you tried booting into safe mode to do this, if you can get there what you may have to do is go into safe mode with command prompt and try and set C: to active in the list of disks
0
 

Author Comment

by:nigelbeatson
ID: 39776678
can't get into safe mode either. I can get into a command prompt, but how do I set c: to active in the list if disks?
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 3

Expert Comment

by:Stef95
ID: 39776684
Please see this link : https://support.microsoft.com/kb/300415

Where was the OS installed on C: or D: which has the system files ?
0
 

Author Comment

by:nigelbeatson
ID: 39776690
the original installation was on drive c: when I boot into the repair mode, the files are all on drive d:. there is also a drive c: but this is labeled as "system reserved" and appears to be empty.

thanks
0
 

Author Comment

by:nigelbeatson
ID: 39776712
you are correct.

when I run diskpart I can see that volume 1 which us c is assigned to system rese and the original boot disk is assigned to d:.
0
 

Author Comment

by:nigelbeatson
ID: 39776753
ok - I have managed to switch the letter assignments using diskpart & assign, but when I re boot the drive letters have switched back again??

help!

many thanks
0
 

Author Comment

by:nigelbeatson
ID: 39776854
when I run bcdedit, the windows boot loader indicates the device with partition=d: and the osdevice with partition=d:

it seems that these have been changed somehow, but how do I fix it?

many thanks
0
 
LVL 3

Expert Comment

by:Stef95
ID: 39776984
i think this isn't possible the whole operating system would need to be reinstalled and when reinstalling it, format drive C: and then select it to install on
0
 

Accepted Solution

by:
nigelbeatson earned 0 total points
ID: 39776989
I have resolved this now thankyou. I was researching this and came across an article which said to check the bios settings.

the sata drive settings were set to IDE and on changing it to ahci, on re boot it fired up perfectly.

many thanks to all.
0
 
LVL 56

Expert Comment

by:McKnife
ID: 39780237
Hi.

Next time please provide a proper error description in the first place. The IDE/AHCI issue would have been solved in seconds :)
0
 

Author Comment

by:nigelbeatson
ID: 39780361
I gave all the information available. there was no specific error message. it just failed to boot.
0
 
LVL 56

Expert Comment

by:McKnife
ID: 39780389
Ok, if I set my sata controller from AHCI to IDE compatibility mode, then it won't boot but shows a bluescreen (a flashing one). If I chose to hit F8 and select not to restart automatically, I can even read the blue screen contents. For me (as for you) they would have displayed 0x000..7b which indicates the boot device is inaccessible - which would never be seen if the drive letters were mixed up (because at that early stage, letters are not even used).

This should only show you that indeed "all the information available" was nowhere to be seen here. :)
0
 

Author Comment

by:nigelbeatson
ID: 39780621
there was no blue screen just the option to start normally or enter repair mode. thanks for your help.
0
 
LVL 56

Expert Comment

by:McKnife
ID: 39780646
***hope you won't call me a smart ass - just meant helpful***
Well, you just did not see the blue screen as the default setting is to auto-restart. As I wrote: you would need to hit F8 to turn auto-restart off in order to see it.
0
 

Author Closing Comment

by:nigelbeatson
ID: 39790464
I accept my own solution as I found the answer elsewhere.

many thanks to all
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Assume you have an outside contractor who comes in seasonally or once a week to do some work in your office, but you only want to give him access to the programs and files he needs and keep all other documents and programs private. Can you do this o…
There are many software programs on offer that will claim to magically speed up your computer. The best advice I can give you is to avoid them like the plague, because they will often cause far more problems than they solve. Try some of these "do it…
This Micro Tutorial will give you a basic overview of Windows DVD Burner through its features and interface. This will be demonstrated using Windows 7 operating system.
Want to learn how to record your desktop screen without having to use an outside camera. Click on this video and learn how to use the cool google extension called "Screencastify"! Step 1: Open a new google tab Step 2: Go to the left hand upper corn…
Suggested Courses

656 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question