After upgrading from Windows 10 to Windows 11, I've encountered a strange issue: my BIOS no longer recognizes my 4TB SSD, which was previously working just fine. I can still boot from my 500GB SSD, as I have two slots on my motherboard. The weird part is that my 4TB SSD is still set as the main drive and functions well once I boot into Windows 11. However, I'm seeing a dual boot option that I never set up. I'm really confused and would appreciate any help with this!
3 Answers
First off, it's important to be cautious with BIOS changes; always back up your data first. As for your issue, dual boot entries can sometimes pop up if there’s an existing installation on another drive. One suggestion is to check your BIOS settings, or you might need to do a clean install. When installing Windows, ensure you only have the drive you want to boot from connected. Also, make sure your SSD is detected correctly in Windows by checking Disk Management.
I can relate to your situation! In many cases, it's preferable to perform a clean install rather than upgrade. During the installation, keep only the target SSD connected to avoid any confusion with UEFI partitions possibly getting directed to the wrong drive. Remember to back up everything important before proceeding with such changes!

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