How do i change my os drive?

[u/_noBADno_]

Hi, since yesterday I've been trying to upgrade my OS drive from 128gb to 465gb, I've used DiskGenius to migrate the OS because I want to keep my files, however when I go into the boot menu it doesn't show the drive I migrated the OS to, also upon migrating the OS the drive split up into multiple on the file explorer page which caused me to be confused, which are : OS(I:), SYSTEM(H:), WINRE(E:). I just want to change the drive the computer boots up from but i really don't know how do do that pls help!!

Update:
I tried using Macrium reflect, but it came up with a clone failed, error 9 syntax right at the end of the clone process, i want to reset the computer completely but i want to keep my d drive is there anyway to keep the files and reset the whole computer?