All of a sudden everything was slow on my laptop Toshiba L20, WINDOWS XP HOME sp3. Every window I try to close hangs and I get the error ``this program is not responding , end now``. The internet connection icon disappears and occasionally reappears. When I open up power options and click on a tab it freezes and I cannot end the program from task manager or any other way , the only way to turn it off is by shutting down the laptop with the power button. Also when I try to shut down the laptop via Turn off from the start menu I do not get the display screen with the options Turn off, Restart , hibernate , it just hangs with a blue screen and does not turn off, the only way I can turn it off is by holding down the power button for a few seconds. Sometimes when I install a program which needs a reboot after the completion of installation , I get `this program is not responding``power options``, run dll , etc, and it just hangs there until I close it with the power button.Also in task manager it shows cpu usage 15 % or a certain figure while system idle shows98% or 99% basically it is disproportionate.
It functions normally in safe mode , I get the screen with the options restart , turn off , hibernate etc . Power options also opens up and does not hang when I click one of the tabs only it gives lesser options than in normal mode.
I have tried removing all antivirus , firewalls etc , I have formatted and reloaded windows , but the same problems persist.
Anyone please shed some light as to what it could be hardware or software?