If you have to ask, you probably want Home . If you manage your own network, run VMs, or need drive encryption, pay for Pro .

A "clean ISO" is a raw, untouched copy of Windows directly from Microsoft’s servers. It contains no drivers, no bloatware, no registry hacks.

Fix: On the screen where you select the drive, press to open CMD. Type diskpart → list disk → select disk X → clean → convert mbr . Close CMD and click Refresh.

If you need to put that ISO onto a USB drive for installation, you can use: