Budget USB Write Speeds - Unarchive Lite-S1.exe (4GB)
UnarchiveUSBGB  BrandDescriptionBoots?
8 minutes3.016  SanDiskUltra FitY
9 minutes3.032  MushkinEnhanced AtomY
11 minutes3.0 128  PNYTurbo Flash DriveNO*
12 minutes3.016  TranscendJetflash 760NO*
14 minutes2.08  SanDiskCruzer SDCZ U3Y
16 minutes2.08  PatriotXporter XTY
17 minutes2.08  KingstonDataTraveler G3Y
21 minutes2.016  SanDiskCruzer Fit CZ33Y
21 minutes3.08  AdataUV150Y
27 minutes2.032  AdataUD310 dash driveY
75 minutes2.08  Silicon Power Ultima U05NO*

 NO* = convert from GPT to MBR using diskpart (column at right)

All three NO BOOT USB flash drives were able to boot this YUMI collection after carefully following the DISKPART procedure found in the right column.

DISKPART > IF YOUR YUMI USB WILL NOT BOOT -- use diskpart at your own risk
  1. Click (DOS) Command Prompt
  2. Type: 
    diskpart
  3. Press Enter
  4. Type: 
    list disk
  5. Press Enter
  6. Remember the number of the disk ( example: 2 ) you want to convert.
  7. Type: 
    select disk 2 ----------------- [ number is only an example ]

    Where 2 is the number of the disk that’s going to be converted.

  8. Press Enter
  9. Type: 
    clean ------------------ [ this may fail ]
  10. Press Enter
  11. Type: 
    convert mbr
  12. Press Enter
  13. Disk #2 is now being converted

To create new partitions using Command Prompt, follow these instructions:

  1. Type: 
    create partition primary
  2. Press Enter
  3. Type: 
    list volume
  4. Press Enter

    5. Make sure the new volume is selected (look for the * on the left side) before you format the partition

  5. Type: [ ONLY FOR 64GB or larger USB flash drive ] 
    format fs=exfat
  6. Type: [ ONLY FOR 32GB or smaller USB flash drive ] 
    format fs=fat32
  7. Type: 
    exit
  8. Press Enter
You can now run YUMI again to create the required USB multiboot structure.

IMPORTANT: Even though you just reformatted your USB flash drive, when running YUMI again, you will still need to click the FORMAT box. Fortunately, the YUMI format will be quick. After YUMI, you can proceed with menu step 6 - transfer the Lite-Speed files to your USB flash drive.