Toshiba p205-s6237 having difficulties on rebooting my toshiba lap top model P205-S6237. a error message and cannot read file.

Hi

I would boot into Safe Mode and run this utility to check your registry and startup.

http://www.download.com/Startup-Inspector-for-Windows/3000-2086_4-10291346.html?cdlPid=10452094

OR

You can try the original OS cd and repair the installation of the OS.

Last Resort

If that does not work then see if you can roll your computer back to a date prior to the problem starting.

/SPH