Windows 10: cant boot into windows unless my old HDD with my old windows is plugged in.

so, for context I bought two new m.2 ssd's since my hard drives are dying and I wanted a faster experience. After installing windows 10 for the first time on this SSD and trying to boot it says "select which volume you'd like to boot off of" which I am sorta familiar with since I used to run Linux and windows at the same time. i can use windows 10 on the ssd so long as the hdd is installed in my pc. when i try to remove it and boot off the windows on the ssd it just boots straight into bios. ive tried turning uefi mode off and i tried to reinstall windows without the hdd installed to see if th

:)

 

Windows 10 Will not Boot on my SSD unless the old Harddrive is plugged it.

So,

I fresh installed Win 10 last night on to a new SSD

Everything was peachy.

This morning I turned on my computer to a window error unable to boot.

I checked Bios settings, Priority is set to try booting from the new Install on the SSD first.

Other drives 2nd 3rd and 4th etc.

Now, interestingly The SSD will Boot Windows if the old Hard Drive (containing my old install of Win 10)

I have checked and the Copy of Win 10 is running on the SSD.

It's just really odd that on it's own it will not boot. "Insert boot media"

But with the old drive plugged in, it will.

What is going on here?

(also, accidentally snapped the SATA pins off my back up drive!!!!!!!! Gunna have to get the soldering iron out for that one)

 

Windows 10 refuses to boot without the old monitor.

Hi,

To address your issue with connecting a new monitor, please perform these steps:

• Plug in the old monitor.
• Uninstall the video driver, go to Device Manager > right-click on the video driver >
  Uninstall.
  
• Unplug the old monitor, then connect the new one.
• Turn on the computer, and Windows will attempt to reinstall the driver.
  

Update us on the result.

 

Changing boot hdd

I downloaded PartitionMagic8.0, but the partition i want to make is not bootable.
So the system boots from the old, loud hdd, and when i unplug the old, it doesnt boot.
Any advice or suggestions how to change boot hdd without reinstalling Winxp?