Advanced guide to show you how to fix black or blue screen error in windows 11, windows 10, windows 8 & windows 7 with the following error message:
/”An Operating System Wasn’t Found Try Disconnecting Any Drives That Don’t Contain an Operating System
Press ctrl+alt+del to restart/”

For more info, read this topic: https://bit.ly/4fDVscy
https://vmtechs.com/an-operating-system-wasnt-found-win-11-10-fixed/

How to check hard disk health status: https://bit.ly/49UjKxI
https://vmtechs.com/check-hard-disk-health-win-10-11/

I will show you how to change the BIOS settings briefly in this video; however, you can watch the following video for more details:
https://youtu.be/EgvLToUJI18

Watch the following video to see how to create a bootable USB using android mobile:
https://youtu.be/cWo2GayUtZQ
or
https://youtu.be/4kZuUDl7pLA

Execute the following commands:
bootrec /rebuildbcd
bootrec /fixmbr
bootsect/nt60 sys
bootrec /fixboot

The Following video contains more details and additional methods to fix BCD file:
https://youtu.be/D9Az4w21ZxI

Or watch this video to see how to rebuild BCD automatically using free tool:
https://youtu.be/oQcFjr6laeo

3. How to reconfigure windows and boot partitions:
Make sure the boot partition is active:
DISKPART
LIST VOL
Sel vol x
Replace X with the volume number of boot partition
DETAIL PART
If you see No in front of Active, turn it into active using the following command:
Active
Make sure that windows partition it is NOT active, otherwise type INACTIVE command to deactivate it.
If the boot partition is not active, you will get one or both of the followings messages:
The boot configuration data store could not be opened.
The system cannot find the file specified.

Disconnect the windows disk then reconnect it again.
4.2. Physical Damage to the disk:
Use Windows Management Instrumentation Command (wmic) or Check Disk (CHKDSK) tools to check disk health and to fix repairable bad sector.

WMIC DISKDRIVE GET STATUS, MODEL

CHKDSK C: /F /R /X /B

5. To repair system files, execute the following commands:
MD C://Scratch
DISM /Image:C:// /Cleanup-Image /CheckHealth

DISM /Image:C:// /Cleanup-Image /RestoreHealth /Source:WIM:E://Sources//install.wim:1 /ScratchDir:C://Scratch /LimitAccess

SFC /ScanNow

If you get an error message saying that “Windows Resource Protection could not perform the requested operation”, boot in Safe mode and try again.
Execute the following commands to boot in safe mode:
bcdedit /set {default} safeboot minimal
bcdedit /set {default} safebootalternateshell yes

Execute the following commands to disable safe mode:
bcdedit /deletevalue {Default} safeboot
bcdedit /deletevalue {Default} safebootalternateshell

6: If the system is not available, you may need to reinistall windows as on this video:
https://youtu.be/aXxElaai4OQ

an operating system wasn’t found press ctrl+alt+del to restart
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