My sister's laptop is a Toshiba C650 with Win7 64-bit installed. The problem first started with a sudden screen freeze, after which she got BSOD with the message: Kernel data inpage error
After that she managed to turn it on, it worked slowly at first and then it was OK. But two days later, it would not even turn on, there was only black screen. After a few failed attempts, I finally managed to enter Advanced boot options by pressing F8. First I tried to start with "last known good configuration" but the screen again was completely black. Then again, after some failed attempts to get to Advanced boot options, I managed to enter Safe mode, however, again I got the BSOD with the message:
"unmountable boot volume". My first step will be to insert the Win 7 disc again, as was advised on the blue screen. If you have some suggestions, please share.
She did download some content from the Internet at that time and that could be the cause... Thanks in advance!