You might need to format an external hard drive before you can use it with your computer. We have some tips to help the process go smoothly.

If your computer doesn't detect NVMe SSD, verify the connection, change drive letter & format SSD, etc to fix NVMe SSD not detected issue.

While the Mac can use a hard drive formatted for Windows, some features may be limited. So it's a good idea to format a new hard drive specifically for macOS.

Formatting an external storage drive can serve various purposes, whether it's preparing a USB drive for a fresh start, clearing out an external SSD, or adapting a hard drive for compatibility with ...

SSD firmware on newer drives will mask writes and deletes so you don't know where they are actually happening, as a way to manage wear-leveling.

The big question is, which one is best for your drive? GPT or MBR – Which format should you use for SSD Before we can answer this question, we must first dig deep into what GPT and MBR are about.

It’s possible you could force HFS+ on a boot SSD with High Sierra with some Terminal monkeying around, but I can’t see that would end well, and I’m not sure it offers any advantages.