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If you are installing windows 7 or 8 32 bit or 64 bit on a acer aspire 5733 laptop you will have 1 driver that will be missing in device manager. For windows 7 that driver is Ethernet controller and the correct device is Broadcom ethernet. You can download it here. For windows 8 the missing driver is for PCI Simple communications controller and the correct driver is Intel engine management interface. You can download it here. For windows 10 all drivers should install automatically

Don't forget the correct power supply for this laptop is 19V 3.42A 5.5MM 2MM