Hi
Welcome to Microsoft community.
It's great to hear you've successfully upgraded your new system with additional RAM and an SSD clone. Regarding the issue with the Windows 10 HDD not being recognized by Windows 11, here are some steps you can try to resolve the issue:
- Check BIOS/UEFI Settings:
- Restart your computer and enter the BIOS/UEFI settings (usually by pressing F2, Del, or F12 during the boot process, but it varies by manufacturer).
- Look for settings related to SATA operation mode (AHCI, IDE, RAID) and ensure it's set appropriately. If you're unsure, you can try the default setting or AHCI mode.
- Check if the HDD is recognized in the BIOS/UEFI. If it's not recognized here, Windows won't see it either.
- Disclaimer: Microsoft provides no assurances and/or warranties, implied or otherwise, and is not responsible for the information you receive from the third-party linked sites or any support related to technology. If you are going to modify BIOS Settings, please back up all your personal files first to ensure you do not lose data.
- Check Power and Data Cables:
- Ensure the HDD is properly connected with both SATA data and power cables.
- Try using different SATA ports on the motherboard.
- If possible, use a different SATA data cable to rule out a faulty cable.
- Disk Management:
- Right-click the Start button and select "Disk Management."
- If the drive does appear here, but without a drive letter, you can right-click the partition and choose "Change Drive Letter and Paths" to assign a drive letter.
- If the drive shows up as "Not Initialized," you'll need to right-click it and initialize it. Be careful with this option because initializing can erase data.
- Device Manager:
- Go to the Device Manager (right-click the Start button, select "Device Manager").
- Check under "Disk drives" to see if the HDD is listed.
- If it is listed, but has a yellow triangle with an exclamation mark, there might be a driver issue. Right-click the drive and select "Update driver."
- Check for Hidden Devices:
- In Device Manager, click "View" and select "Show hidden devices" to see if the drive is being hidden for some reason.
- Check Diskpart:
- Open Command Prompt as an administrator.
- Type
diskpartand press Enter. - Then type
list diskand press Enter to see if your HDD is listed here.
- Try a Different Computer:
- As a last resort, try connecting the HDD to a different computer to ensure the drive itself is functioning correctly.
If the HDD works fine when connected via USB but not when connected internally, it could point to an issue with the computer's SATA controller, the power supply to the SATA power connector, or a compatibility issue with the motherboard. If none of these steps work, you might need to consult Dell's customer support for assistance with your specific model.
Best regards
Derrick Qian | Microsoft Community Support Specialist