Hi,
Good day! My name is Santosh. I am an independent advisor and Microsoft user like you. I will be glad to help you today.
It might take 30 minutes or more than 1 hour to prepare an automatic repair on a Windows 11.
It depends upon several factor like system file corruption, system hardware like SSD, HDD, RAM etc.
In order to repair your system, you have to keep patience and wait for repairing.
I hope this information will help you. Please let me know if you need any further assistance.
Regards,
Santosh