I made a mistake!
I made a mistake!
I don't really understand, I own an Asus Prime B560M-A. I'm going to test it with a better ISO on my USB drive.
You're facing an issue where the BOOTMGR isn't found. Here are all the images you think might be useful for assistance. You've also shared details about the error screen, boot order, possible devices, secure boot, and CSMR status—everything you need to provide.
OS malfunction occurs but the storage device appears functional. The boot sector/MBR is incorrect, which can cause issues when installing from a burned or copied ISO, especially if you're expecting a genuine copy of Windows. The best solution is to perform a fresh installation from a clean media, ensuring a proper copy rather than a pirated version. If your original data was wiped, proceed with the OS setup, format the drive, and carry out the installation.
After that, use Rufus to place the ISO onto the USB drive so it can start booting