Unable to boot Windows 11 ARM after Parallels update

Hi,

I am using Parallels 26 and Windows 11 ARM. I had updated Windows 11 a few days back. Today I got a prompt for updating Parallels, for which I shut down my Windows and let Parallels perform the update. Current Parallels version is Version 26.1.1 (57288).

I had an external HD connected in the Windows environment which I forgot to remove. I have had the external drive attached on many occasions earlier when rebooting Windows so I did not think it was an issue. During reboot Parallels (or MacOS - not sure which) asked that there an unidentified device and should I Eject/Ignore/<one other option>. I chose Ignore like in the past. However this time a DOS-like Boot Window appeared with a message that there was no Operating System. The Boot Menu is a new entity and I have no idea how to navigate it or move forward.



Please guide. Thanks in advance, Sumant.