Satellite L300 Problem when using DC Adapter

I have Toshiba Satellite L300 with Core2Duo T5800 (2 cores) processor. When I enter onto Safemode, there is no problems. But when start Windows normally, system immediately not responding.
After run it onto Safemode and disable another core and leave one processor core then I restart Windows to start normally, there is no problem.
So please somebody tell me how to resolve this problem without disable multiple core feature!!!!

 

I would suggest/recommend a clean install of your O/S on another (new) HDD (to test my theory out that your O/S installation is borked somehow).

If there is no problems there, then you need to either do a clean install on your original HDD, or figure out the program that is causing your machine to be so flakey.

Do you have all the manufacturers latest drivers, including any BIOS and/or firmware updates for your hardware installed?

Do you have a single A/V program installed (more than one can conflict with each other) - I would suggest MSE above all others.

Have you run a chkdsk /F on your drive? Maybe there is an error in the file system that is making your system lock up (obviously affecting a file needed for dual core operation).

Have you run a registry cleaner? If you have - re-install your Windows O/S and don't install those type of utilities again.

On the physical side, have you blown out your notebook lately of all dust and debris - maybe this is a matter of overheating with dual cores enabled? (Obviously it is working much harder than in Safe mode).

I hope some of the above points you in the right direction.

Good luck.

 

Given the age of the notebook, I would check for any failing hardware first. Sometimes a slow computer can be the result of a failing hard drive.

In any case I would really back up the data, and if your Toshiba recovery partition is still in tact, hold down 0 and power on the machine. That will boot your Toshiba into the recovery partition and will reinstall Windows.