I'm trying to do a clean install of Windows 10/11 on a new SSD, but the installer isn't letting me proceed. It shows "Drive 0 Unallocated Space" but clicking "Next" does nothing (or gives me an error about GPT/MBR).

We’ve all been there. You’re halfway through a fresh Windows installation, excited for a clean slate, but when you get to the "Where do you want to install Windows?" screen, you see —and to make matters worse, the "Next" button is greyed out, or you get an error saying Windows can't be installed there.

If your entire drive shows as unallocated, the drive is currently a "blank slate." Scenario 1: You are Installing on a Brand New Drive

Windows automatically creates:

Drive 0 Unallocated Space During Windows Installation __exclusive__ Jun 2026

I'm trying to do a clean install of Windows 10/11 on a new SSD, but the installer isn't letting me proceed. It shows "Drive 0 Unallocated Space" but clicking "Next" does nothing (or gives me an error about GPT/MBR).

We’ve all been there. You’re halfway through a fresh Windows installation, excited for a clean slate, but when you get to the "Where do you want to install Windows?" screen, you see —and to make matters worse, the "Next" button is greyed out, or you get an error saying Windows can't be installed there. drive 0 unallocated space during windows installation

If your entire drive shows as unallocated, the drive is currently a "blank slate." Scenario 1: You are Installing on a Brand New Drive I'm trying to do a clean install of

Windows automatically creates:

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