steve6375
commented
3 years ago Do you have an Asus z87 mainboard? Mine does the same. It seems to be a bios bug. I get same issue with other types of uefi-bootable usb drives too, not just Ventoy.
Closed ghost closed 3 years ago
steve6375
commented
3 years ago Do you have an Asus z87 mainboard? Mine does the same. It seems to be a bios bug. I get same issue with other types of uefi-bootable usb drives too, not just Ventoy.
steve6375
commented
3 years ago 
ghost
commented
3 years ago Do you have an Asus z87 mainboard? Mine does the same. It seems to be a bios bug. I get same issue with other types of uefi-bootable usb drives too, not just Ventoy.
Nope (ASUS B85M-E with the latest BIOS version - 3602). I've also had this happen when I created a MemTest86 bootable USB. Tried different tools to create the drive with no luck (Rufus & the tool that comes with MemTest86, don't remember what it's called). The drive had like 10 duplicate entries. It was ridiculous.
ghost
commented
3 years ago Is there some sort of script that can delete the duplicates by reading the "partition=F:" value & deleting all identifiers that contain it? I don't know Batch or Powershell, so help on this would be greatly appreciated. Are there other workarounds that don't involve modifying the UEFI boot entries? Ventoy should give us the option on what filesystem to choose when initially creating the drive (something like Rufus), since the default exFAT 128k configuration is ridiculous for small files (which is why I decided to reformat in the first place).
steve6375
commented
3 years ago There are scripts which can remove the firmware entries, however they will just come back again whenever you connect the USB drive again. The UEFI BIOS adds the entries to the mainboard NVRAM - then when you boot to Windows\WinPE it reads the UEFI NVRAM and adds the firmware entries into its BCD file. https://www.vacuumbreather.com/index.php/blog/item/45-the-case-of-duplicate-firmware-objects-in-bcd
Official FAQ
Ventoy Version
1.0.46
What about latest release
Yes. I have tried the latest release, but the bug still exist.
BIOS Mode
UEFI Mode
Partition Style
GPT
Disk Capacity
64GB [Kingston DT100G3]
Image file checksum (if applicable)
No response
What happened?
Duplicate UEFI boot entries get created on each boot after the main data partition gets reformatted to NTFS. Have had this happen on 2 USB drives. I also tried deleting the duplicates using "bcdedit" & "efibootmgr" with no luck. The entries keep duplicating seemingly forever & they point to the main data partition (which is not bootable).