Cfadisk Inf

cfadisk.inf

To "put together" the text for a file, you essentially need to modify a template of the Hitachi Microdrive filter driver to match your specific USB or SD card's hardware ID. This process "tricks" Windows into treating removable media as a fixed local disk.

[cfadisk_addreg] HKR,,"UpperFilters",0x00010008,"cfadisk" Cfadisk Inf

  • Security: Modified cfadisk.sys is unsigned. On 64-bit Windows, you need testsigning mode (bcdedit /set testsigning on) or disable integrity checks.
  • Data Loss: Improper INF editing may make the drive inaccessible.
  • Modern OS: Windows 10/11 generally do not require this; you can use the built-in diskpart → ATTRIBUTES DISK CLEAR READONLY or use a registry trick (for USB sticks, not IDE CF).

System Stability

: Because it forces Windows to treat a removable device as fixed, improper removal (unplugging without "Ejecting") is more likely to cause file system corruption, as Windows may keep write caches open. cfadisk

While useful, this modification carries significant risks that must be understood: Security: Modified cfadisk