Rufus 4.12

• Filter out the new Bitdefender VHDs
• Filter disallowed characters in local account names
• Improve Microsoft Dev Drive detection (#2873, courtesy of @MartinKuschnik)
• Improve the pre-formatting partition cleanup code
• Improve error reporting on ISO extraction issues
• Improve detection of drives with long hardware IDs (typically SSDs) (#2894)
• Improve conflicting process reporting
• Improve support for Nutanix (#2884) and umbrelOS ISOs
• Fix a TOCTOU vulnerability in Fido script execution (CVE-2026-2398, reported by @independent-arg)
• Fix replacement vulnerabilities for diskcopy.dll and oscdimg.exe
• Fix FFU image creation being erroneously invocated, when trying to save an ISO image (#2889)
• Fix saving of ISO images to paths that contain spaces (#2829)
• Update UEFI:NTFS and UEFI DBXs to latest