After i upgraded my laptop memory from 64mb to 320mb of ram

it crashed when booting up and produced a blue screen and then restarted it couldn't even load into windows or even into safe mode i cured it by formatting the laptop and resinatlling everything i think that might be a hood idea but if you can get into windows then right click the "My Computer" icon and go to properties and see if it has added your ram also another way is trying to switch the ram around in the slots, then restart. Backup if you can before changing the ram slots around or you could loose everything. I never could backup so i lost all my things i had done

If you reinstall windows then it might work.
hope it does.