there are 4 screws on the back of your computer that will release the powersupply at that point you should be able to just slide it out keep mind were you unplug things Company site http://www.attechcomputers.co.cc
Umax 2200 usb scanner & Vistascan 3.55u in Windows XP Scanner installs to the default XP...
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Umax 2200 usb scanner & Vistascan 3.55u in Windows XP Scanner installs to the default XP scanning software, but I have not been able to install the scanner so that it works with the Vistascan software. I much prefer Vistascan as it is much more user friendly & offers more flexibility. Any help would be appreciated.