Malware has been blamed for a problem with the Windows 7 operating system, dubbed the 'Black Screen of Death'.
Prevx apologised to Microsoft for "for any inconvenience" its earlier claims may have caused.
That would mean explorer is crashing and you need to spawn a new instance most likely.
Windows crashing isn't news.
On a related note, does it crash for people who know what they're doing with it? I know even less about windows than I do about linux, so I tend to blame myself when either system goes down. I'd be interested to know if blue screens/black screens/general eating of work is unavoidable with windows or down to user error.
As mentioned, a stable setup just "crashing" is extremely rare. I saw a Windows NT server with an uptime of something daft like 18 months last year - and I'm sure people have seen Windows uptimes that dwarf that.
Windows crashes are usually the result of failing hardware, bad drivers and/or malware. I'm not saying Windows is perfect and never crashes - it's just nowhere near as much as people make out.