xeromist wrote:
Windows 10 fingerprints your hardware. So as long as a system has been activated on Windows 10 in the past you can always reinstall on a blank drive. When the installation asks for a product key you just select the option to skip it and Windows will activate after the installation is complete.

So dual windows boot is not available?
Why cant I choose my second drive as a bot option?
How to disable the primary ssd (the one from motherboard ) and just use my work ssd that I had on my N550JV?

bubu112233 wrote:
So dual windows boot is not available?
Why cant I choose my second drive as a bot option?
How to disable the primary ssd (the one from motherboard ) and just use my work ssd that I had on my N550JV?

Let me try you mention that you don't have CSM, that is because your system is UEFI, not Legacy MBR. Next, in order to have a dual boot, you'll need to clean install one of the hard drives and set up the dual boot at that time. You can google dual boot you will have issues with activation trying to run 2 windows 10 on one license.

If you insist on keeping your old SSD then you'll need to remove our M.2 PCIe NVMe SSD put it up as you'll need it later and you don't want it screwed up. Before you remove your M.2 SSD copy the eSupport folder to USB drive it holds all the drivers and Asus Software for your new notebook.
Now with only your old SSD boot to the BIOS/UEFI and change the system to Legacy then you will see the CSM and no longer see fast boot or secure boot etc.


When you reboot your system may or may not boot up into windows since all the hardware drivers will be different from what you have on your old SSD if you do get it to boot into windows you'll have to install the correct drivers for everything. Also, you will have an issue with activation of windows since the windows 10 that you have on your old SSD is activated on your old computer If its a retail version you may get MS to activate over the phone if it's an OEM version of windows it's not transferable to another computer. All in all your going to have some issues and headaches and probably a few days to get everything workings correctly.

This is where that M.2 SSD you put up comes in as in the long run you'll probably end up putting it back in and reinstalling your software and then using your old SSD for programs or data,

So while what you want to do is possible will it be worthwhile or time well spent that's up to you.