What is a .NVRAM file?
An .nvram file stores a virtual machine’s BIOS or UEFI settings.
- Did you know
- NVRAM is where a virtual machine remembers its firmware settings between runs.
- Beyond boot order, the file can preserve a virtual machine’s serial-port settings and its UEFI Secure Boot keys between sessions.
- It mirrors the battery-backed NVRAM chip of a physical PC, the small store that keeps firmware settings when the power is off.
- What Analyser reads
- Identify and read more disk images, firmware and VM files: TRX router firmware, USB DFU images, UEFI/BIOS flash volumes (.fd/.rom), Linux UBI volumes, Android sparse images (.simg), U-Boot FIT (.itb), raw floppy images (.dsk/.ima/.vfd with FAT boot sector), VMware snapshot metadata and NVRAM, Parallels VMs and disks (.pvm/.hdd), OVF manifests (.mf) and Veeam backups (.vbk).
- Depth of analysis
- .NVRAM is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .NVRAM file
- Drag a .NVRAM file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.