Once you have the ISO file, you must turn it into a bootable format using a USB flash drive (at least 8 GB recommended): Windows 8.1 - Microsoft Lifecycle
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: Click "Start" to format the drive and copy the installation files Critical Considerations Windows 8.1 ISO download for 64 and 32 bit Once you have the ISO file, you must
How to create usb bootable install media for Windows 8.1 in 2025 Once you have the ISO file
To verify on Windows:
Open Chrome or Microsoft Edge.