Boot option in hp 14

[shlimsp]

Product: HP-14s-Cf0042tx 

Operating System: Microsoft Windows 10 (64-Bit)

Operating System: Microsoft Windows 10 (64-Bit)

Product: HP-14s-Cf0042tx

Operating System: Microsoft Windows 10 (64-Bit)

Windows 10 Home Single Language

20H2

i have cloned my 2.5 hard disk to m.2 nvme ssd. When I boot up , it show that the notebook cannot access the window.

I took out my m.2 card and it can access the windows from the old hard disk. I took out my old hard and put back the m.2 and it can access my new m.2 ssd. 

How can I put the 2.5 hard disk and m.2 ssd in the notebook and just changed to the m.2 ssd as the boot storage?

I also want to go back to my 2.5 hard disk as the boot storage when I feel like test some new software. I still want to have both storage with window 10 in the same notebook 

Which option in bios should I changed to switch to any of the storage as boot device

[WAWood]

@shlimsp 

A simple way to do this, which is what I use with several versions of Win10 in the same PC, is a software product know  as EasyBCD -- which you can get from here:  https://neosmart.net/EasyBCD/

With that, you can manually add Windows installs to your boot menu then, when you reboot, you will see a menu listing all the Windows installs, from which you can choose the one you want.

[shlimsp]

I did use the easybcd. When I take a look at both the hd partition, only one hd window partition have  'boot, Page File, Crash Dump). Only this hd can be bootable when I choose the hd in the boot menu. The other hd will only be booted if I used the window repair disk to change the other disk to bootable.

[WAWood]

@shlimsp 

When you use the EasyBCD function to "move" the boot files to a different disk, it actually "copies" the files, so when you are done, either disk is bootable.  At least, that is how it has worked for me time and time again.