USB Boot FAILS (Aspire R5 571T 57Z0)

jerswing
jerswing Member Posts: 26 Enthusiast WiFi Icon
edited November 2023 in 2018 Archives
1) Need to check RAM using Memtest86
2) Created Bootable USB
3) Acer FAILS to show USB option, both setting F12 Enabled and changing Boot Order
? Suggestions, anyone??
BTW Do "USB HDD", "USB Floppy", "USB CD/DVD" refer to "USB-Connected External [Device]"? --- or What?


Best Answer

  • JackE
    JackE ACE Posts: 44,891 Trailblazer
    Answer ✓
    You must first partition the stick in GPT partitioning scheme using Rufus. Then format the GPT partitioned USB to FAT32, also using Rufus. Jack E/NJ

    Jack E/NJ

Answers

  • JackE
    JackE ACE Posts: 44,891 Trailblazer
    Was the bootstick GPT partitioned & FAT32 formatted? Jack E/NJ

    Jack E/NJ

  • jerswing2
    jerswing2 Member Posts: 1 New User
    JackE said:
    Was the bootstick GPT partitioned & FAT32 formatted? Jack E/NJ
    Windows says USB is "FAT" (presumably FAT32 these days) & 16GB USB - so probably not GPT (all % Windows Quick Format utility)
  • JackE
    JackE ACE Posts: 44,891 Trailblazer
    Answer ✓
    You must first partition the stick in GPT partitioning scheme using Rufus. Then format the GPT partitioned USB to FAT32, also using Rufus. Jack E/NJ

    Jack E/NJ

  • jerswing
    jerswing Member Posts: 26 Enthusiast WiFi Icon
    Not sure why GPT is necessary; but after 3 attempts, finally able to create MemTest86 bootable USB

    Thanks!
  • JackE
    JackE ACE Posts: 44,891 Trailblazer
    That's because your UEFI bootstrapper usually only recognizes a GPT partitioned stick. It won't recognize an MBR partitioned stick unless it's been set to Legacy BIOS mode. And you don't want legacy BIOS mode because then your GPT partitioned hard drive won't be recognized.  Jack E/NJ

    Jack E/NJ