Bdtyktl

My system is stuck on System Repair Loop. The Windows System Repair fails to repair with error "Missing OSLoader"

I tried to fix with a solution suggested in a Windows forum: Automated Startup Repair fails. Cannot find OS Loader, but the command

bootrec /rebuildbcd

returns

Total identified windows installations:0

Any ideas how to fix the bootloader?

This is what worked for me: Perform bootrec.exe /fixmbr bootrec.exe /fixboot and bootrec.exe /rebuildbcd in that order from a windows 7 DVD or USB. Is a guide to help you make a USB windows 7 iso. http://www.techverse.net/how-to-create-a-bootable-usb-pen-drive-for-windows-7/

I found these instructions on the Microsoft forum, which were posted by Vijay B. I've formatted them in a way that makes more sense to me. Since you've already partially completed these steps, you'll want to start at step 5.

1. 
   

   First Start System Recovery Options. To start system recovery options.
   a) Boot from the disk, Once you get the welcome screen of installation with the option “Install now”

   
   
   
   
   
   • Click on Repair your computer
   
   
   • On the next page click on Advanced Options
   
   
   • Now click on Troubleshoot
   
   
   • Lastly click on Command prompt and follow the on screen instructions
   
   
   
   


2. 
   

   At the prompt, type the bootrec command as shown below and then press Enter:

   
   
   

   bootrec /rebuildbcd
   
   

   
   

The bootrec command will search for Windows installations not included in the Boot Configuration Data and then ask you if you'd like to add one or more to it.

3. 
   

   If you see the following message, proceed to step 10.

   
   
   

   Scanning all disks for Windows installations.
   
   Please wait, since this may take a while...
   
   Successfully scanned Windows installations.
   
   Total identified Windows installations: 1
   
   [1]  D:Windows
   
   Add installation to boot list? Yes<Y>/No<N>/All<A>:
   
   

   
   


4. 
   

   If you see the following message, proceed.

   
   
   

   Scanning all disks for Windows installations.  
   
   Please wait, since thismay take a while...  
   
   Successfully scanned Windows installations.  
   
   Total identified Windows installations: 0  
   
   The operation completed successfully.
   
   

   
   



5. Since the BCD store exists but does not list a Windows installation, you'll first have to remove it manually and then try to rebuild it again.

At the prompt, execute the bcdedit command as shown and then press Enter:

    bcdedit /export c:bcdbackup

The bcdedit command is used here to export the BCD store as a file: bcdbackup. There's no need to specify a file extension.

The command should return the following on screen:

    The operation completed successfully.

Meaning the BCD export worked as expected.

6. At this point, you need to adjust several file attributes for the BCD store so you can manipulate it.

At the prompt, execute the attrib command exactly like this:

    attrib c:bootbcd -h -r -s

This removes the hidden, read-only, and system attributes from the bcd file. Those attributes will restrict the actions you can take on the file. Now that they're gone, you can rename it.

7. 
   

   To rename the BCD store, execute the ren command as shown:

   
   
   

   ren c:bootbcd bcd.old
   
   

   
   

Now that the BCD store is renamed, you should now be able to successfully rebuild it, as you tried to do in Step 2.

Note: You could delete the BCD file entirely since you're about to
create a new one. However, renaming the existing BCD accomplishes the
same thing since it's now unavailable to Windows, plus provides you
yet another layer of backup, in addition to the export you did in Step
5, if you decide to undo your actions.

8. 
   

   Try rebuilding the BCD again by executing the following, followed by the Enter key:

   
   
   

   bootrec /rebuildbcd
   
   

   
   

which should produce this in the Command Prompt window:

Scanning all disks for Windows installations.

Please wait, since this may take a while...

Successfully scanned Windows installations.

Total identified Windows installations: 1

[1]  D:Windows

Add installation to boot list? Yes<Y>/No<N>/All<A>:

meaning that the BCD store rebuild is progressing as expected.

9. At the Add installation to boot list? question, type Y or Yes, followed by the Enter key.

You should see:

The operation completed successfully.

meaning that the BCD rebuild is complete.

10. Restart your computer.

Important: Depending on how you started System Recovery Options, you may need to remove a disc or flash drive before restarting.