Stuck at "Less than a minute remaining" during Monterey installation (MBP 8,1)

My Macbook Pro 8,1 (Late 2011, 13-inch) seems to stuck at "Less than a minute remaining" during the installation of MacOS Monterey via OCLP onto Macintosh HD.

The Macintosh HD is a 500GB Seagate Momentus Thin SHDD which was salvaged from my old Acer Aspire laptop. It originally had Windows Vista but I wiped the drive clean so that I can install Monterey on it. The original Macintosh HD was a Hitachi 260GB HDD which failed 3 days ago. It originally had High Sierra installed. Performance of the Mac using the original HD was very laggy with kernel panics here and there before it finally failed. I am not the original owner of the Mac as my friend gave me this Mac after he found it during spring cleaning, so the original HD was about to fail anyway. The polarizer of the Mac's LCD was already damaged before I got it but apart from random glitches it does not affect the performance of the Mac.

Anyways do I need to restart the Mac or let it finish installing until the setup assistant appears?