I am running Windows XP SP3 in my comp. And I have a big issue. I am unable to open any anti virus websites or download many types of installer files. For example I can't download Flash player from Adobe website or Chrome or other browsers. Most of these download will stop at 99% and will not download completely. Any attempts in installing anti virus software ( either downloaded onto USB from other computers) results in system restarts.
If I try to start the system in Safe mode and it's variants ( with networking/ command prompt) the system restarts in normal way. Don;t know what to do need your help. Have reinstalled the OS many times over with no success. Kindly advise.