Temporarily disable real-time protection (just during Rufus operation). Better yet, add an exclusion for rufus.exe and your USB drive’s letter in Windows Security → Virus & threat protection → Manage settings → Exclusions. 2. The Image Identity Crisis: Corrupt or Hybrid ISO Not all ISOs are created equal. Some Linux “hybrid” ISOs (e.g., certain Ubuntu or Arch derivatives) ship with a boot catalog that Rufus misinterprets. If the ISO’s internal boot loader paths are non-standard, Rufus’s patching logic fails.
Have a Rufus war story? Share it in the comments below. rufus unable to patch/setup files for boot
When Rufus tries to patch a file like bootmgr or ldlinux.sys , the antivirus quarantines the change in real-time, believing it’s a bootkit or rootkit attack. Rufus receives an "access denied" response and throws the error. The Image Identity Crisis: Corrupt or Hybrid ISO