It's acceptable to link an older hard drive with legacy Windows after installing Windows on an SSD.
It's acceptable to link an older hard drive with legacy Windows after installing Windows on an SSD.
According to @rogrash, you should reinstall Windows on your SSD after removing other drives. Everything is working fine now, so connecting your old HDD and reformatting it via elevated CMD (using diskpart...) should be safe. I understand you've been asking often, but it seems search results haven't been very helpful. Thanks!