[iMacg3]

Boot to the installation media > Command Prompt.
 
In the command prompt, type the following and press Enter:
 
 
bcdedit | find "osdevice"

Note down the 'osdevice' letter

Type the following in the Command Prompt and press Enter. Make sure to replace C with your osdevice letter.

chkdsk C: /r

Let me know if any errors are found.

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The indicated partition was D:

Chkdsk completed successfully, no errors found

[joanna03]

The indicated partition was D:

Chkdsk completed successfully, no errors found

[iMacg3]

Boot to the Installation Media > Command Prompt.

From the command prompt, launch FRST.

In the search box, type the following. Make sure to include the asterisks.

*BCD*

then click Search Files.

The tool will create a log on the USB flash drive (Search.txt) Post it in your next reply.

[joanna03]

I've attached the scan results

Attached Files

•  Search.txt   271.54KB   549 downloads

[iMacg3]

My apologies, there was a typo in my instructions.

Repeat the procedure but type BCD* instead.
Post the Search.txt in your next reply.

[joanna03]

I've attached the new results (BCD*)

Attached Files

•  Search.txt   31.7KB   504 downloads

[iMacg3]

Hi,

When you boot to the installation media, is there an option for System Restore?

[joanna03]

Yes, there is. Should I try that ? I have 3 restore points, the latest from 2 weeks ago, created for a Windows Update. AFAIK, this won't touch my files, only the system files/settings, right ?

Edited by joanna03, 01 March 2019 - 01:28 PM.

[iMacg3]

Yes please try the most recent one before the problem occured.

It should not affect your personal files.

[joanna03]

Unfortunately, System Restore didn't complete successfully, I got the attached error

 

Attached Thumbnails

• 

[iMacg3]

Hi,

Pick a different Restore Point and try again.

If it doesn't work, let me know - we'll try a different method.

[joanna03]

Tried the other 2 restore points but to no avail, I got a Failure when trying to copy registry... What else can I try ?

Edited by joanna03, 03 March 2019 - 04:57 AM.

[iMacg3]

Hi,

We need to run a fix with FRST:

• Please download the attached fixlist.txt file and save it to the same location as FRST (USB Flash Drive)
  Note: It's important that both files, FRST.exe/FRST64.exe and fixlist.txt are in the same location or the fix will not work
  NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to your operating system
  ((  fixlist.txt   29bytes   515 downloads ))
• Boot to the Installation Media > Command Prompt and plug in the USB flash drive to the affected computer.
• In the command prompt, type notepad and press on Enter;
• Notepad will open. Click on the File menu and select Open;
• Click on Computer/This PC, find the letter for your USB Flash Drive, then close the window and Notepad;
• In the command prompt, type e:\frst.exe (for the x64 version, type e:\frst64.exe and press on Enter;
• Note: Replace the letter e with the drive letter of your USB Flash Drive;
• FRST will open;
• Click on Yes to accept the disclaimer;
• Click on the Fix button and wait for the scan to complete;
• A log called fixlog.txt will be saved on your USB Flash Drive. Attach it in your next reply.

[joanna03]

Attached the fixlog

Attached Files

•  Fixlog.txt   906bytes   493 downloads

Edited by joanna03, 03 March 2019 - 12:50 PM.

[iMacg3]

Try to boot normally. Do you still receive the same error message?