Hello! It seems like you are experiencing an issue with missing storage after installing Windows 10 on your laptop with two SSDs. It sounds like only one of the SSDs is being recognized by the system, which is why you are only seeing the "C:" drive.
Here are some steps you can try to troubleshoot and hopefully resolve the issue:
1. Check BIOS/UEFI Settings: Restart your laptop and enter the BIOS/UEFI settings. Make sure that both SSDs are being detected by the system. If one of the SSDs is not showing up, there may be a connection issue or the drive may need to be properly initialized.
2. Disk Management: Once you are logged into Windows, you can check Disk Management to see if the missing SSD is recognized but not assigned a drive letter. Right-click on "This PC" or "My Computer" and select "Manage." Then go to "Disk Management" to see if the second SSD is listed there. If it is, you can assign a drive letter to it.
3. Device Manager: You can also check Device Manager to see if the second SSD is listed under Disk Drives. If it's not there, there may be a hardware issue or the SSD may need to be reconnected.
4. Physical Check: If you are comfortable with it, you can open up your laptop (if it's not under warranty) and physically check the connections of both SSDs to ensure they are properly connected.
5. Reinstall Windows: As a last resort, you may need to reinstall Windows 10 and make sure to properly select the correct drive during the installation process.
If none of these steps resolve the issue, it may be best to seek help from a professional technician who can physically inspect your laptop and SSDs to determine the root cause of the problem.
PH