I do not know exactly for what reason, but after I did Update from Sun VirtualBox 3.0.2 version Sun VirtualBox 3.0.4Operating system began to fail frequently. Crash.
They began to appear blue screen errors no matter if VirtualBox run or not, at the time. It seems that after installing the drivers appeared some changes that are not compatible system.
Problem He appeared on a laptop Toshiba A300 / Windows RC 7 7100 / 32-bit
Uninstalling Sun VirtualBox version and 3.0.4 resettlement / Installation version Offer VirtualBox 3.0.2.
Download in English: VirtualBox-3.0.2-49928-win.exe (the version for Windows 32-bit)
We do not know if BSOD It is a general problem of VirtualBox 3.0.4 pe Windows 7But in case there are others who have encountered this errorHopefully this article to them either help.