My laptop is unable to connect to wireless networks. I tried the intel proset diagnostics test and it showed that my software radio is off but I couldn't find anyway to turn it back on. Later on I checked back on my pc still trying to solve the same problem but I found out that all my wireless adapters had disappeared (when I went to Control panel>Network and sharing center>Change adapter settings), also the Intel wireless proset tools app was nowhere to be found too (although when I went to Programs and Features it was still there which means it was still installed). I'm really confused and lost here. Any help please ? . My pc is a Dell Inspiron 1121, running on windows 7 home premium and my network card is Intel Centrino 6250
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Have you tried reaching the dell website for the latest Wireless adapter drivers?