{"product_id":"windows-setup-reports-drive-is-not-valid-ntfs-and-refuses-to-install","title":"Windows Setup reports 'Drive is not valid NTFS' and refuses to install","description":"\u003cp\u003e\u003cstrong\u003eThe problem:\u003c\/strong\u003e Setup will not install Windows on a drive that is not formatted as NTFS, despite successful formatting attempts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSymptoms:\u003c\/strong\u003e Setup error: drive must be NTFS formatted; formatting from Setup fails; third-party formatting tools also fail.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLikely cause:\u003c\/strong\u003e Disk is MBR partition table but Setup requires GPT for UEFI boot; bad sectors on drive; drive detected as removable; partition table corrupted.\u003c\/p\u003e\u003cp style=\"font-size:13px;color:#6b7280;\"\u003eCategory: Windows Installation \u0026amp; Setup · Difficulty: Advanced · Windows: Both\u003c\/p\u003e\u003cp\u003eDigital knowledge-base article delivered as an instant download after purchase — no physical shipment.\u003c\/p\u003e","brand":"LVL1","offers":[{"title":"Default Title","offer_id":46984997667013,"sku":null,"price":12.99,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/1831\/5205\/files\/lvl1-14.png?v=1790190606","url":"https:\/\/www.lvl1.store\/products\/windows-setup-reports-drive-is-not-valid-ntfs-and-refuses-to-install","provider":"LVL1","version":"1.0","type":"link"}