Question Booting to windows not working

[daarzy]

Hello,
I
tried to switch to windows 11 and disabled csm support but I have noticed afterwards that my ssd is in MBR format so it cannot be read.

When I try to go back for now (no other pc around + usb stick for windows iso) and enable csm support and disable security boot via miscellaneous, it’s not working and just resetting to csm disabled after restart

I want to go back to my windows and at least have that until I have an usb stick to reinstall and do that with GPt format

My mainboard is A620M Gaming X gigabyte

 

[USAFRet]

Presumably, you made a full drive backup before you started down this upgrade path?
Just recover the WIn 10 from that backup.

If no backup (Why not?), then just do a full wipe and reinstall of WIn 10, and start over.

How To - Windows 10 clean install tutorial

If you are looking for the Windows 11 Clean install tutorial, you can find that here: Windows 11 Clean install tutorial (Click here) Otherwise, welcome to the Windows 10 Clean install tutorial This tutorial is intended to help you, step by step, to perform a clean install of Windows...

forums.tomshardware.com

 

[Vikashni636]

Try restarting the product.

 

[james2526]

The issue is that your SSD is in MBR format, which isn't compatible with UEFI boot required for Windows 11. To resolve this:

1. Re-enable CSM: Try resetting the BIOS to default settings and enable CSM for legacy boot.
2. Check Boot Mode: Ensure your SSD is detected under the correct boot mode (UEFI vs. Legacy).
3. Convert MBR to GPT: Use a USB drive with Windows recovery tools to convert your SSD from MBR to GPT using Diskpart.

Once the SSD is converted to GPT, you can reinstall Windows 11. If needed, temporarily enable CSM to boot Windows 10 until you're ready to make the switch.