Windows 10 remains connected to a USB drive after installation.
Windows 10 remains connected to a USB drive after installation.
The question is clear—did Windows remain on the USB or move completely to your PC’s SSD after installation?
USB installer functions similarly to DVDs—it unpacks files onto your drive during installation. You might notice phrases like "copying files" when the process begins. If you need to use USB for different purposes, you can reformat it again. Alternatively, you can retain it as an installer, which is useful if you encounter OS corruption that requires a repair install from the installer itself.