I'm on a Windows 7 laptop and I have two Ubuntu VMs that I've been running under VirtualBox. The first is a 64 bit version of Ubuntu that I don't use, the second is the 32 bit that I do use. Unfortunately, the 32 bit .VDI file has disappeared.
You read that correctly, and no I did not accidentally delete it, recycle it, or touch in any way, shape, or form. I booted up my laptop this morning and the file was not there. I ran WinDirStat to list my large files - nothing. As you can see, the 64-bit version is still there, and a few supporting files are still present from my 32-bit version, but not the .VDI.
I have one other possibility but am unsure how to proceeed - occasionally my laptop will go into hibernate mode, and I'm curious if there's a possibility that it is somehow stuck in hiberfil.sys (which is currently clocking in around 4.5GB).
Anybody have any experience with a similar situation that they could share?