Windows 10: Boot manager booting to the wrong drive

Hello,

Awhile back, with the help of this community, I was able to reimage my computer from an older SSD to a new M.2. The older SSDs were fine, I just wanted to update to a M.2. I would now like to format the old drives and use them as storage. I've read that I can do this from disk management but when ever I reconnect the old drive, my computer boots to them instead of the M.2 and I'm logging into my "old" windows, where everything is as it was before I swapped the drives. should I just log in and format them from there? or is there something else I need to do to wipe these drives. In bios the number one thing in the boot order is Boot manager.

Thanks in advance!

:)

 

Windows 7 booting off wrong drive?!?!?

Please move if this is in the wrong place.

I have two hard drives, a 1.5TB drive, and a 160GB drive. Windows is installed on the 1.5TB drive, as are all my files and programs. The 160GB drive has a bunch of old files, and apparently the bootmgr and boot folder. Nothing else is on the 160GB drive, other than media files etc.

If I remove the 160GB drive from the machine, windows refuses to boot, plug it back in, it works fine. The setup with two hard drives I have now is temporary, as the 160GB drive will go into another machine.

My question is, can someone give me a step by step on how to make windows force to boot off the 1.5TB drive, ignoring the 160GB drive in the boot process completely?
I don't know how to do this in Windows 7, on XP I would just run the /fixmbr command and its related ones.

Any help would be appreciated.

Note: I would really really rather not have to wipe and reinstall, I know it can be done without one as I've had this issue with XP before.

 

Boot Emergency!

No it doesnt show. Only my OS drive.

Its there and it says it running and normal.

Anyway I just had the same boot problem on reboot. Everything was fine 10 minutes ago. Now it wont boot without my manually selecting the drive.

 

Windows boot manager

There could be some system conflict triggered after the said changes. To help you with your concern, we suggest that you perform a clean boot. A
clean boot is performed to start Windows by using a minimal set of drivers and startup programs. This will help to determine what is causing the issue on the Windows boot manager. To do this, click on this
link and scroll down to the
How to determine what is causing the problem by performing a clean boot section then follow the steps listed..

Note: If the installation is successful and the issue has been resolved. Please go through the section “How to reset the computer to start as usual” to reset your computer to the normal startup.

Let us know how it goes after performing the suggested steps.