I can't add my new SSD on Boot Sequence

@Kflash08​ I did it, and Windows tried to repair itself. But it's not performing repair or diagnostics. I'm stuck; I can't do anything other than open BIOS or view Windows recovery options.

@masafi​ Try cloning the disks again with Macrium Reflect Free. To reconfigure the system back to boot from the hard drive, just do the opposite as previously mentioned.

@Kflash08​ I can't do it. I plugged in my hard disk, and now I'm experiencing the same problem with it as well.

The hard disk was visible on the boot screen, but my computer wouldn’t start. So, I moved it to the top of the list, and my computer started. I will try copying again. 

I am writing this so that others can benefit. I will explain all the steps I took from scratch but ultimately failed to achieve success.

First, I bought a new SSD and wanted to install it on my computer. Since there was only one slot available and Windows was running from my old SSD, I first cloned my old SSD to my internal hard disk without using a cable. Then, I replaced the SSDs.

My computer automatically prioritized the HDD in the boot order. After installing the new SSD, I cloned the HDD back onto it and tried to set the SSD as the primary boot device from the BIOS screen. No matter how many times I tried, I couldn't manually add the SSD as a boot option.

After two days of effort, the only successful solution was to disconnect the hard disk (or remove its connection cable) and perform a clean format on the SSD. Since I had important files backed up on my hard disk as a clone, I reconnected it after formatting the SSD, retrieved my important files, and then wiped the HDD clean as well.

For those attempting a similar process, I have some crucial advice.

First, before cloning, make a list of your installed applications in case of any issues. This will make things much easier later. For potential formatting situations, note down your Windows product key. Since mine was digitally registered, I didn’t need to enter it manually.

After cloning your files, do not delete them immediately. Keep a backup on a working drive until the process is fully completed.

And most importantly, before starting such a task, check how many slots your computer has and do not make irreversible changes to your BIOS settings.

My English is not very good, so I used GPT to translate these texts. I apologize for any possible mistakes.

@Kflash08​ Thank you very much for your help.