[SOLVED] How do I install a new OS on a new drive, with the old one on another drive?

[0pax]

I have recently purchased a M.2 SSD, and I already have Windows 10 installed on the SSD I use right now. I want to install the M.2 SSD, with Windows on it, and delete the old (Windows 10) OS on the SSD I use now. So what I essentialy want is: Remove Windows 10 from the SSD im using right now, and install the new M.2 ssd, with a new copy of Windows 10 on it, and use that instead and make the old SSD into a normal storage device.

 

[Colif]

safer to install onto m.2 first incase you have any hassles, at least then the ssd still works

remove ssd from PC and only have m.2 installed
boot from installer
follow this guide: https://forums.tomshardware.com/faq/how-to-do-a-clean-installation-of-windows-10.3170366/

once PC boots fine from M.2, reattach ssd and make sure its not listed in boot order
Copy anything on ssd you want to keep onto m.2
go to settings/update & security/recovery
under advanced startup, click restart now button
Pick troubleshoot
Pick advanced
Pick Command Prompt
Type diskpart and press enter

Type list disk and press enter

This will show the list of drives currently attached to PC, make note of the drive number of the drive you want to wipe

If Disk 1 is the drive you want to clear, type select 1) and press enter. A message will confirm it is selected

Warning: Diskpart Erase/Clean will permanently erase/destroy all data on the selected drive. Please be certain that you are erasing the correct disk.

Once you sure its right disk, type Clean and press enter

The Command Prompt window will display the message "DiskPart succeeded in cleaning the disk". Close out of the Command Prompt window by clicking the red X in the upper right hand corner.

restart PC and then run disk management to format ssd so you can use it again.