Just recently got the dreaded blue screen and a corrupted hive file message. Unfortunately I had no handy hints with me at the time and no access to the web so I started tweaking. To cut to the chase I have 3 operating systems now!
One hangs completely,
The second one resets first time round then starts sometimes in administrator mode.
The third gives me the 0x80070002 error which cites a license checking issue and sometimes it hangs after a flash of blue screen. On two occasions it started spontaneously in administrator mode
I thought I had found the solution on the KB http://support.microsoft.com/default.aspx?…kb;en-us;310794%5B/url%5D but I do not have the registry keys they mention.
The whole thing is in a mess and although I haven’t lost any data and I’m on at the moment I can’t guarantee restarting after I close down again or have to do a reboot.
I cannot check for viruses either as I cannot get AVG to work anymore.
Does anyone have any advice as to how to get out of this (without doing a complete reformat hopefully)?
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I decided (contrary to my nature ) to avoid the issue (perhaps it will go away). “Cryptography” can be found in other places but I feel even less inclined to touch these. 
