Crucial's support topics include SSD initialization, disappearing SSDs, and external drives not showing up, all common in upgrade scenarios. A new drive may need initialization and partitioning in Windows Disk Management. An M.2 slot may share lanes with SATA ports. Older platforms may require BIOS or NVMe driver updates. External SSDs require checks for cable quality, power, and USB protocol support. Troubleshooting should begin with hardware connection and BIOS recognition, then move to Disk Management, Device Manager, and file system status. This helps avoid mistaking configuration issues for NAND or controller failures.