A few weeks ago, my computer began to experience regular Blue Screens. I generally ignored this, simply rebooting the computer. These were probably triggered by me plugging in a new kind of mouse.
Anyways, after a while, I ended up getting a rather severe error. The blue screen identified some sort of error with ntfs.sys, the exact details of which I wasn't quick enough to write down. Upon reboot, I had to launch start-up recovery. Using a System Restore point, I was able to dig myself out of trouble.
However, a week or so later, I experienced the same problem, with the same solution...and then, a few days after that, same problem, same solution. I'm sure you get the gist of where I'm going. Now, I'm stuck with a computer that won't boot, without a restore point. I've tried memory diagnostics, chkdsks, and multiple Startup Repairs, but nothing has worked.
If it matters, I'm running Vista Home Premium 32 bit, SP0, on a Toshiba Satellite A200.