I didn't know that I needed to post the output of "garuda-inxi". Since I completely reinstalled Garuda. I thought it would be irrelevant to post it now. Not sure If I'm right.
I'm sorry . I thought I clearly stated my problem. It seems I was wrong.
I used windows disk manager to merge two partition into one. Garuda had different partition but after booting, the system ran into something "rescue grub". It's fix now. I was just wondering if I did something wrong that cause this and what can be the reason behind it. That's it.
If I'm still doing something wrong. Sorry.
I have been in different forums like zorin, mint and I never had to post a output that's why I didn't know that how here it work. I'll read the template and follow what it says next time.