[SOLVED] Windows 10 help required

Feb 2, 2021
5
0
10
Hi thanks for letting me join your forum

I've got a problem with a laptop that wont startup; its saying "operating system not found."

I've managed to use a repair disc to access the CMD prompt

Strangely this is showing X:\windows\system32>

I have managed to access C: & run regedit.exe

The entries against Mounted devices are:

(Default Reg-SZ value not set
\??\volume (6b001cheee with a value set
\??\volume 6b01ecce with a value set
You then have Dosdevices\C through to H
With Dosdevices\X last

Quite simply it would seem that my laptop has now got an instruction to boot from a non existant drive X - is there anyway of changing this back to c?

Hoping you can help - regards
 
Solution
Sorry, what was result?

I should have looked to see what command did before giving it to you.
BCDBOOT /s C: sets C as the system partition.

that doesn't seem right as system partition is the hidden boot partition, not C...

really, a clean install is probably a better answer than to go messing with windows like this. I have never been very successful with these commands.

On another PC, download the Windows 10 media creation tool and use it to make a win 10 installer on USB

anything you want to rescue?
boot from installer
on screen after languages, choose repair this pc, not install.
choose troubleshoot
choose advanced
choose command prompt
type notepad and press enter
in notepad, select file>open
Use file explorer to...

Colif

Win 11 Master
Moderator
  • Boot the computer from your disk.
  • Follow the prompts to get to the “Command Prompt” option.
  • Launch Command Prompt and type the following command: bcdboot c:\windows /s c
 
Feb 2, 2021
5
0
10
Colif, I've run command: bcdboot c:\windows /s c but the result takes me out of my comfort zone!
Which of these commands am I supposed to run?
 

Colif

Win 11 Master
Moderator
Sorry, what was result?

I should have looked to see what command did before giving it to you.
BCDBOOT /s C: sets C as the system partition.

that doesn't seem right as system partition is the hidden boot partition, not C...

really, a clean install is probably a better answer than to go messing with windows like this. I have never been very successful with these commands.

On another PC, download the Windows 10 media creation tool and use it to make a win 10 installer on USB

anything you want to rescue?
boot from installer
on screen after languages, choose repair this pc, not install.
choose troubleshoot
choose advanced
choose command prompt
type notepad and press enter
in notepad, select file>open
Use file explorer to copy any files you need to save to USB or another hdd

once you copied everything you want to save
boot from installer
follow this guide: https://forums.tomshardware.com/faq/how-to-do-a-clean-installation-of-windows-10.3170366/

sorry its late here, I should have looked into that answer more.
 
Solution

iTRiP

Honorable
Feb 4, 2019
915
74
11,090
Sorry, what was result?

I should have looked to see what command did before giving it to you.
BCDBOOT /s C: sets C as the system partition.

that doesn't seem right as system partition is the hidden boot partition, not C...

really, a clean install is probably a better answer than to go messing with windows like this. I have never been very successful with these commands.

On another PC, download the Windows 10 media creation tool and use it to make a win 10 installer on USB

anything you want to rescue?
boot from installer
on screen after languages, choose repair this pc, not install.
choose troubleshoot
choose advanced
choose command prompt
type notepad and press enter
in notepad, select file>open
Use file explorer to copy any files you need to save to USB or another hdd

once you copied everything you want to save
boot from installer
follow this guide: https://forums.tomshardware.com/faq/how-to-do-a-clean-installation-of-windows-10.3170366/

sorry its late here, I should have looked into that answer more.
...I would second that, but fresh install deleteing everything partitions the works is best way to get away from problems...and continue to compute in peace.
 
Feb 2, 2021
5
0
10
I'm very grateful for your help & support.

In the end it was easier to pick up a cheap OEM Windows 10 & start again.

The laptop is only a handy 2nd PC, but I've now got a backup image & rescue disc in case of further trouble!!