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Hi Matt,
My name is Igor, it's a pleasure for me to help others and I'll try to help you.
Please try Method 2 described at https://learn.microsoft.com/en-us/troubleshoot/...
GRUB boot loader on Windows 11 system
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Anonymous
I have a system that was previously installed with Ubuntu and now has Windows 11. Unfortunately it seems to still use the GRUB boot loader when booting initially. I've tried repairing the MBR using win11 installation media but this has not had any affect. Any suggestions?
Windows for home | Windows 11 | Install and upgrade
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