Step 2Disable Firewall
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Unless you are fortunate enough to own the apropriate sized star drive you will not be able to unscrew these screws, however there is an alternative: Hex keys (or maybe they will be found under wrenches, Allen.) The first two screws (not shown) will be easy enough to find and render harmless; however, these two, crammed way in the back, are situated in such a way as to make you unable to properly align and turn the wrench. You need either an extremely long wrench or to just make your own tool.