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Hello, after having discovered my dell laptop running vista business was ridden with spyware trojans and viruses I decided to perform a clean install. Upon completion I reinstalled all the main programs I needed which are backed up on my external HDD and also installed Norton 360. After a day or so my computer became very slow so i ran a virus scan and found a few minor trojans so deleted them and still found my computer to be running the same speed. I went through the whole msconfig process and only allowed a few non-microsoft services to run and also disabled ALL but the graphics card util programs to startup. Still not happy i uninstalled Norton and grabbed a copy of AVG and everything was still clean and still very very slow so i reformatted my computer for a second time and after installing only 2 programs (FL Studio 8 along with 5GB of audio samples & Adobe CS3) my computer still had over 80% memory free on the HDD BUT still have very slow computer taking over 5 mins to do anything from pressing the start button to minimising a window. I have installed AVG 8 full version before installing everything and scanned every file i install and have scanned the whole external HDD and deleted all trojans which have appeared (backdoor.hupigon for example). Now on safe mode everything is fine but cannot understand what is wrong as I have no programs on startup and no non-microsoft services running. When on task manager when the system is at its slowest it shows around 94% system idle process time but the RAM is almost at its max. Any solutions please? If anything needs more detail please do not hesitate to ask. Thanks you James