I cancelled the factory recovery process on my Toshiba Laptop L645.
It corrupted the hard drive somehow, and I can't open a file on the hard drive – so in the end I had to reformat my hard drive.
What caused this?
Starting factory recovery restores a system image onto the hard drive, effectively the same thing as formatting the drive in the first place. Since you cancelled it, the image was not completely copied and the partition was invalid or missing files.
Essentially, once you've started factory recovery there is no way back. You might be able to find some of your missing files if you use a data recovery program, but don't count on it.
Remember - files you don't have backed up are files you didn't really want that much in the first place.
Thank you for your interest in this question.
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).
Would you like to answer one of these unanswered questions instead?