Windows 10: Boot thing- i cannot run windows anymore, after conneted another SSD

i think i just dont get the idea of how boot works, though i have years of experience with computers.

I have an SSD drive (connected via NVMe) work fine up until:
- i connected another SSD drive (via SATA), then it booted into other windows OP on the sata drive.
- i disconnected the sata drive, expected to go back to the windows installed on the NVMe drive, and got the attached message

btw, recovery tools doesn't fix it.
windows version: 10
I just don't have control over the ability to choose which drive it will boot from.
More over, now i can't even recover my main (NVMe) drive.



:)

 

Unable to boot Windows after cloning it to SSD

Hi,



Thank you for writing to Microsoft Community Forums.



I understand that you are facing issues while booting the PC after cloning Windows to new SSD. I would like to know what happens when you try to boot the PC to desktop using SSD?



The reason you are not able to boot the PC is that the files required to boot Windows are still recognizing the HDD as the main drive. I would suggest you to try rebuilding the BCD files and see if you are able to boot the PC using
SSD.



Kindly follow the steps below to rebuild the BCD.

1. Create a bootable media and boot the PC using the media.
2. On the Install Windows screen, select Next >
   Repair your computer.
3. On the System Recovery Options screen, select
   Troubleshoot> Advanced options > Command Prompt.
4. Now type in the commands and hit enter: BOOTREC /FIXMBR
   
   BOOTREC /FIXBOOT
   
   BOOTREC /scanos
   
   BOOTREC /rebuildbcd
5. Restart the PC.

If the issue persists, please get back to us with the results of the troubleshooting steps to assist you further.



Regards,

Prakhar Khare

Microsoft Community – Moderator

 

Disk boot failure after removing old Vista partition

Thank you for the reply, muchomurka! As I indicated in my post, I have already tried all the steps you suggested to no avail:

- I cannot choose startup repair since the computer does not boot from the installation media
- I cannot use command prompt since the computer does not boot further than the POST screen
- I have disconnected and tried out all hard drives individually.

Since I had Win 10 up and running a few hours ago, I can say with 100% certainty that none of the hardware is faulty.

The real mystery is, how come the system won't boot from any media without an empty disk containing an old Vista boot sector being on top of the boot priority list? And which steps to take now that I've cleaned this disk and it does not exist anymore?

Would appreciate any ideas and pointers!

 

Windows 10 SSD Boot and Sleep faliure

Windows cannot stop the BIOS recognising the SSD. If at any time you can go into the BIOS and the SSD is not listed then you have an (intermittent) hardware fault. It does not matter what the precursor steps are if the hardware was OK it must be listed

Step 6 is categorical, you have a hardware fault. BIOS device recognition is always before drivers load so they cannot affect the process