Windows-all-editions-aio-66in1-x86-x64-update-januari-2021 -
Select your ISO, choose "GPT" for UEFI systems or "MBR" for older BIOS systems, and click Start.
If the uploader provided an MD5 or SHA-1 hash, verify your file matches it to ensure it hasn't been tampered with after upload. windows-all-editions-aio-66in1-x86-x64-update-januari-2021
Because this is a "66-in-1" image, the file size is likely very large (potentially over 10GB-20GB). Select your ISO, choose "GPT" for UEFI systems
Choose "Custom: Install Windows only (advanced)." Delete existing partitions on your main drive until you see "Unallocated Space," then click Next. Select your ISO
Are you planning to install this on a or an older machine ? I can give you more specific advice on which of those 66 editions to pick.