Grub4dos Error Numbers
Note: If you have too many 'set' variables in your \_ISO\MyE2B.cfg file, it can cause many different grub4dos errors to occur in various menus. Try without a MyE2B.cfg file to check if it still gives you an error.
60: File not contiguous
The file has been split into several different places on the drive. For E2B, most payload files and most ext2 files need to be contiguous. Run WinContig or Defraggler to make all files on the drive contiguous.
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SanDisk Extreme SDCZ880-128G-G46
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See Blog post