hello everyone i have been doing clean install everytime i download a new driver i select custom and tick clean install and thats it. But does the clean install really remove all the left over of previous drivers?. Should i use any other cleaning software to remove the left overs before i install new drivers?. I remember when i used driver sweeper once on windows 8 and it screwed up my nvidia installer caused nvidia installer failed everytime i try to install any driver. Will the left over files affect the performance of new drivers?.