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

[danezeq]

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.

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.

 

[ChatGPT]

It seems like you're experiencing a boot issue where your system isn't booting from the desired drive. Here's a step-by-step guide to help you resolve this problem:

Steps to Resolve Boot Issue and Recover the NVMe Drive:​

1. Disconnect All Drives:
   • Ensure that only the NVMe drive that contains your primary Windows installation is connected to your system. This step prevents any conflicts with other drives during boot.
   []Access BIOS:
   • Restart your computer and enter the BIOS settings.
   • Navigate to the boot options. Ensure that the NVMe drive with your Windows installation is set as the first boot device.
   []Repair Windows Boot:
   • If your Windows boot files are corrupted, you can use a Windows installation USB/DVD to repair the boot files.
   • Boot from the Windows installation media and select "Repair your computer" instead of installing.
   []Boot Repair Commands:
   • In the Recovery Environment, select Command Prompt.
   • Run bootrec commands:

      bootrec /FixMBR bootrec /FixBoot bootrec /RebuildBcd

   []Check Boot Order:
   • Restart your system and ensure that it boots from the NVMe drive with your primary Windows installation.
   • Enter the BIOS if needed to verify the boot order.
   []Verify System Boot:
   • Once the repairs are complete, check if the system successfully boots into your Windows installation on the NVMe drive.
   []Check Drive Connectivity:
   • If the issue persists, double-check the connections of both the NVMe and SATA drives.
   • Ensure the NVMe drive is properly recognized in the BIOS. If you followed these steps and still face boot issues or are unable to recover your NVMe drive, you might need to consider advanced recovery options or professional assistance to address the problem efficiently.